howdy everyone I'm Andy Lee with family history Fanatics and today I've got a tool to be able to
show you and this is the coverage estimator tool on DNA painter now if you've used DNA
painter before then you may be familiar with the water tool this tool is going to look a little
bit like it but it is not the same thing so let's go over here to DNA painter and under tools tools
and waddo I click on that and it's going to give me the different tools here and in this case there
is my save trees for wado and there is my saved trees for the coverage tool so this is one way
that we can get to this tool another way is up at the top there is the tools button and it's going
to list all these tools you can scroll down and you can find the coverage estimator right here
so when you click on it initially it's going to pop up and give you some information on how
to use this I'm going to to go through and show you as we are doing it now you have the option
of importing a jedcom if you want to I'm going to be building this tree manually what this tool is
doing is it is showing you an estimate of how much DNA is represented by different people in
the tree based on who has tested so let me close this and we'll start building our coverage tree
so in this case I can hover over and it's going to give me options to put a name for this person
to edit details to add a child to add a parent well I'm going to just put this name and I'm going
to start with it being me it's Andy now you notice there's a little zero percent right up here well
if I go to edit the details I can put in some information that may be important later namely
birth year and death year and whether I want to add a spouse if I want to change the color
and that but this is right now what DNA is represented and you'll notice there's nothing here
that says that I have tested because this tree is just very simple so let me go and let me add a
child and I actually have several children I have five children now it's highlighted each one as hey
the next Tester the next Tester the next test or the next tester what this is telling me right now
is any one of these people any one of my children would be the next tester that I want to do in
order to get more DNA for myself other than myself of course but when you're the primary person over
on the far left here you can't mark yourself as tested this is whose DNA you really want to get
so I could have any one of these children test and now if I hover over one of them you'll see
hey there's a little box that says Mark as tested so I'm going to do that for my child and I'm going
to change this name to John not the real name of my child but this is just a map for that so we see
here now that John has tested a hundred percent which means I have 50 of my DNA now represented
from John just from that one person the next tester is all listed there now with these we can
also go and add some other information remember when I did the details I have some new things
here but first if this person is deceased I can mark them as deceased and let me close that you'll
notice the next tester goes away because that person can't test anymore let me edit the details
here and just put 2023 as the year that they were deceased so I know this person has died so what
about the others well there was some other details first off they're interested in testing we know
that they might be unknown it might be willing to test it might be not willing to test it might
have been that they're tested but you don't have access to the results yet this person hasn't died
they're still alive but they're not showing up as a next tester here because they're not willing to
test themselves for this other person in let's go and say that ah they have tested but I don't have
access once again you'll see that's showing up the same as the children who have died in that
so one of the things that you might want to do is you might want to actually mark this in some
other way and in this case there is the option to put colors and you can put any number of colors
on here so if I just want to put this yellow and that is for people that that have tested but I
don't have access to then that's great and I can do the same thing with those who are not willing
to test so I'm going to actually color them as a red over here and now just visually I can see
okay who has tested who has not tested and who is the next tester that is recommended here now this
is just simple so far because I've just got me and my family but let me go up and let me add a parent
so now that I've added a parent again this tool is looking at the farthest left-hand person so you'll
notice by adding that parent it has changed from one of my children being the next tester to me
being the next tester because that's what's going to provide the most DNA for this person if I click
on myself as Marcus tested then I have changed it to me now I'm 100 and this person who is my mom
she is at 50 I can add a parent there as well and my mom happens to have a sister and this is
my aunt so there you'll notice now hey that ant is the next tester for this person I can Mark her
as tested because she has tested as well I can mark my mom as tested as well these ones that
are black now those have all tested and their DNA is being provided into this person's here
so you can see I have 75 percent let me edit this to be my grandfather 75 of his DNA represented
now let me add a parent here but he happens to have some siblings so I'm going to add a child
add a child and add another child now the thing about this generation is all of these siblings
my grandfather and his siblings they have all passed away so I'm going to go in and I'm going to
change the details so that they're all listed as deceased and this person edit details is deceased
and this next one is also deceased
and this last one is deceased
all right but one of the things that we do know is that hey these people had children as well so let
me add some children here and add another child here at a child add a child so this would be in
my generation as you can see they're all lined up the same way that water lines that up but it is
actually their parents that are the next testers because they're going to have more DNA from my
my great grandfather now if one of these children has deceased we can start to do some other things
so for instance here you'll notice here my great great grandfather we got 37 and a half percent of
his DNA represented from this group if I mark this person as tested well it goes from 100 50
for his parent and now my great great grandfather we've gone from that 37 and a half percent up to
53 that was pretty good right well when we do the next one so we had a jump of about 16 there from
that one person testing when we do this next one you'll notice it jumps again now at 64 so
not as much and that's because these children have some overlapping DNA between themselves
as well as some overlapping DNA between my mom and my aunt so not all of the DNA that they have
represents new DNA that we haven't seen from my great great grandfather so 16 for one of
them and then 11 for the next one is being what's represented and now the next tester has moved to
this level right here if I test one of these now first off we would expect a smaller percentage
automatically because it's one generation more removed but as we've seen with each one of these
lines that we're getting DNA from it's going to have less and less of an impact on the DNA of my
great grandfather so if I Mark that one as tested it went from 64 now to 69 well let's actually add
a child here and this child we're going to Mark as tested so we went from 69 now to just another one
percent more so not only did we go to the Next Generation but you can see that that line where
progressively getting less and less that's adding to it and so that's what the goal of this tool is
is as you're mapping out your family tree seeing well who is it that would be the next best tester
right now it is going to be this person right here and that's because we already said that
this person had passed away we can put a death year here of 2023 just to remind us now if we
go back one more generation and we add another child now my great-grandfather he immigrated here
in 1912. so most of his family actually stayed back in England he did have a brother that came
over here but that brother unfortunately he died in like 1920 or so oops and that's in the birth
year he died in 1920. so I'm gonna Mark him as deceased here so we would have to go back now and
these all represent the family that immigrated to the U.S for my great grandfather
his other siblings then are still back in England and so I can start adding in you know some
different lines on this let me add another child to get it down there and add another child and
notice here before I started adding in other death dates the recommended next tester is now moved to
this person but this person he has been deceased for a while I'm just going to put deceased
and I'll put 1960. so then it moves down the line and I can keep on adding information of who I know
is deceased who I know is still living and did I save that oh that great grandfather I don't
have him as deceased edit as deceased and you'll notice this jumps around because it's looking for
where the best amount of DNA is going to be and so if you don't have the deceased people correct
then you might I'll jump back to hey your great great grandfather is who we want you to test we
can't test him obviously let me change this one to deceased as well and we'll see now who this moves
to all right so this moves to this person as the next best tester so at one point we did have it as
this child right here as the next best now it is this one because we're going to add some to this
would be my great great grandfather so let's take a look at how these numbers change as we do this
we have 35 percent of his DNA represented right now if we can have this descendant of his test
I'm going to Mark him as tested it went up to 39 so let me Mark is not tested and see what this one
would have done so we went from 35 this doesn't add much of anything like a half a percent yeah
we went from 0.168 now to 0.718 so even though these two children are in the same generation
because of all these other people that have tested here we're not actually going to see much more
DNA from this ancestor which means there's not going to be many more matches from what we can
already find from all these other people that have tested and so in this case we actually
want to go back to the family that's still in England and take a look at their descendants
but even then just because of how far down this is we're only going to add about four or five percent
and if I add another child to their sibling so we're at 39 percent if I test this person as well
that's only going to add two percent so not even as much as we added before so we added
about four percent before now we're just adding two percent with that next child so this helps
to illustrate the importance of a couple of things one you want to test the oldest people
the closest to whatever ancestor you're looking at your parents your grandparents if you have
great grandparents still around you want to test them because we can actually get a significant
amount of DNA that represents that person from testing those people the second important thing
then is you don't want to test just one person you'll notice here in this generation we have
my mom my aunt we have these other two people that have tested as well and in my generation
as far as new there's here's three others this child this child and this child that have all
tested that helped add to that DNA profile of this great great grandfather of mine this tool
is useful in helping to map out who is tested in your family and how much DNA is represented
and then deciding well who should I Target next so not only do you want to put on the people who have
tested represented in black but also the people who have not that's just the blank ones here
and you can use color coding to help identify maybe people who have tested but you haven't
gotten their DNA yet or who are not willing to test as well as marking people who have died maybe
finding descendants of them if you happen to know about those all right so once you've made your
map what we want to do is we want to go up and we want to save that map and that's going to save it
to your account on DNA painter I'm going to click on Save I'm going to save this tree and when I go
back to my dashboard here I can see here that it has the great great great grandfather listed as
the title of this tree so I can go back to it make adjustments save it again and be able to have that
as a tool to use to find who I should test next if you'd like learning how to use tools on DNA
painter then check out this video up here be sure to like this video And subscribe your channel and
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um I hope you like my still faces I'm not sure if I like them or not but