She lists Daniel Wells as her father. He also gave permission for her first marriage to James R. Westbrook on 2 Aug 1891 in Sumner, Dawson Co, NE at the age of 16. They had 2 daughters. She was listed as Clara B. Westbrook when she was married to Cyrus Timmons on 16 Aug 1896 in Sumner, Dawson Co, NE with whom she had a daughter, Pearl only two months later.
Her husband was then Edward H. Warner during the 1900 census. She is listed with him and their 7 month old daughter Eva, along with her 3 daughters Myrtle, Augie and Pearl (Westbrook) from previous marriages. The census says this was only her second marriage. After Clara and Edward divorced, the children were pretty much left to the care of others. Sylvia was raised by neighbors - hence her adoption of the name Pickering. Eva and Edward also seem to have been taken in by others, and are listed with the Droose family in 1910.
In 1910 Clara is listed in the Colorado census with her 4th husband Charles Hitchcock, and with them are only Olga Westbrook, Pearl Timmons and Riley Warner; although all 8 of her children were still living. They moved back to Nebraska for the 1920 census, where they are listed with Riley, Emma, Lawrence and Clara.
[Obituary] The Lincoln Star Newspaper - Sat 9 Feb, & Sun 10 Feb 1924
"Clara B. Hitchcock, living at 2016 "O" St. died at her home at 10:30 P.M. Friday. She was the wife of Charles Hitchcock. Funeral services will be held Monday at 2 P.M. at Hodgman Chapel. Interment in Wyuka Cemetery."
Clara died at age 47 of cervical cancer. Her death certificate lists her birth as 1876 instead of 1875 and was submitted by her (last) husband Charles R. Hitchcock. It says they had been living in Lincoln for 9 years.
In 1930, her daughters Emma and Clara were living with their uncle Martin Hitchcock - whose wife was Pearl Westbrook, their half sister. Son Lawrence was living with the family of his half-sister Sylvia (Warner) Beans.

After her death, her last (4th) husband Charles Hitchcock later married her widoewed sister, Martha in 1945.