Nellie E. Schrock, GW #191 ?

The list posted in the entry room of the Union Gospel Press has two numbers for Harriet E. Schrock:  169 and 191, and no number for Nellie.  Born on 25 September 1909 in Stoney Creek Township, Somerset County, Pa, her name on her birth certificate says “Sarah Elizabeth,” though most official documents list her as Nellie E.  Her parents were Harvey J. and Emma M. (Felton) Schrock.  When Nellie was born, she was the sixth child born to her mother but only the second one living.  Other siblings were born later.  Her father was a farm laborer.