While there is no immediately visible connection, I have the following from Miss Mary L. Quinn, 2402 Lind, Quincy, Il 62301 from a family group sheet she completed in 1991:

LOCK, William
born: 6/16/1841 in Germany
died: 11/21/1912 in Quincy, Adams County, IL
buried: Woodland Cemetery

married: Anna OTTO
date: 1/7/1862
place: Adams County, ILL

William LOCK and Anna had eight children:

Jacob W.
Katie A.
John T.
George J.
Magdalena A.
Bertha A.
Arthur J.
Edward A.