McCajah Moss was the son of Zealy Moss (born in Lowden Co, Virginia Mar 6,1755 and died Peoria, Ill. Oct 31 1839) and his second wife Janette Glasscock (b. Farquer Co., Virginia died Peoria, Ill. Jan 7, 1864). They had 6 children: McCajah, William, Lydia, Sally, Nancy, and Batsy.
McCajah married (his second wife) Sarah Ann Carroll on Dec. 27, 1836. They came to the Willamette Valley, Oregon from Peoria, Illinois, with their son Stephen P. Moss, son Lewis Bradley was born near Lebanon, Oregon in 1854, and a daughter Ella Zann Moss (Mrs. A.R. Simons, Lebanon, Ore). Lake County History