Hi Sue - Your Thos Peckhma's parents are Wm Peckham and Wm's 2nd wife Mary Richardson (Wm's 1st wife:Anne Stephens): 6 siblings of Thos Peckham from 2nd wife and 6 half siblings from 1st wife.
I have father Thos P's line further back too (tree is quite large now), but maybe you do too by now - let me know if any help/info needed.