I just discovered these folks recently.
Martha Ferris Barclay/Barkley,Twitchel was the daughter of Levi Ferris and Anna Divinney. She was born in 1849 in Philadelphia, PA. Her father died in 1865 while serving in the 13th PA cavalry leaving his wife with four young children. It appears the family migrated to Chico about 1876. I believe Martha Married James Barkely in Philadelphia and William Twitchell in Chico.
She had two Barcley children: David and Mary Anne and four Twichell children: Eleazer Levi, Alfred, Eddie and Oliver.
There are family trees posted on Ancestry with more detail about their descendents.
Martha had two sister: Margaret Jane who married William Boness and remained in Chico. Laura Catherine married first William Kunz and then Augustus Hickethier and then moved to Drain, Oregon
There was also a brother, John Randolph Ferris. He was married to a Minnie and they had a daughter, Eva. John and Minnie divorced and John moved to Sacramento where he died in 1940.
How are you related?