If you would like to expand on your yLineage, this is the place to do it. Let others know if your GGG Grandfather had brothers and sisters, but don't forget to post that on the DNA Test Participants Needed forum. The more places you let everyone know your lineage, the better chances someone will find it in an internet search.
Yes, that would be great, I've scoured the site and couldn't ever figure out how to edit it after I initially input it years ago, thanks! William Phillips (1760-1855) is correct, just not the William Linton we have listed, thanks!