From that census Ross is the oldest Biggs child of Agnes McKenna and Virgil Biggs. California is my GGfather who changed his name to Charles as I think he was teased and didn't like the name. Born in 1849 his father wanted to go to the gold rush so bad but couldn't so that is how his new son got his name. Agnes was dead by 1860 and Virgil would die a few years later leaving a bunch of orphans.
I have Agnes and William back a couple of generations in Scotland (Passenger list and census in Scotland but have not pursued that further. The "Rof","Rob" "Raf" would be Ross Biggs from Missouri b 1844 ; Wallace also settled there. I woud love to get any copies of Biggs or Beaver correspondence to the relative in Texas. Sarah married a Hainline and lived in McDonough, Illinois. I will contact you via your personal E-mail firstname.lastname@example.org