For both of you - I'm in one of the 'moved to Iowa' branches. Don't have a Myrtle, but there are afew M.Boss' or otherwise unidentified in my data. Many BOSS lines were in RI and moved to central/western NY before moving on to the midwest in the 1850's - any more identifying names and/or dates on those photos?
Allison - who is your earliest Iowa Boss? - mine is Jerimiah, born 1827 in Ashford, Cattaraugus Co., NY son of Charles (b.1791 RI)