Important to understanding the history of the family is the small Family / Genealogical series. Mentioned as part of this series, but now transferred into the library's printed collection, is the thesis written by Robert E. Stack in 1972. This volume is entitled, "The McClears and the Birneys - Irish Immigrant Families -- Into Michigan and the California Gold Fields, 1820-1893."
Genealogies: Birney, McClear, and Hankerd Families
"The McClears and the Birneys -- Irish Immigrant Families-Into Michigan and California Gold Fields, 1820-1893" thesis by Robert E. Stack 1972