Esther Schiffert was the sister of my grandmother, Carry (Carrie) Jane Schiffert, aka Jenny. Esther was born on 27 May 1877 and baptized on 12 August by Revd David Humbert. Sponsers were Charles Wasser and his Wife Caroline.
Esther's father was John Sylvester Schiffert born on 2 May 1847 and baptized on 27 June 1847 by Rev D. Kohler. Sponsors were Henry Kuntz and his wife Rachel.
Esther's mother was Mary Schiffert ROTHENBERGER, born on 27 March 1849 and baptized on 29 April by Rev Deehand (sp?). Sponsors were William Weidner and his wife Elizabeth.
6 sisters - Anna Cora, Esther Susanna, Carrie Jane, Mary Alice, Sallie May and Remida - and 3 brothers - Peter George, William Henry and Victor Daniel. Upper Milford Township, Lehigh Valley, PA
I know this is the same Esther because my mother told me some stories about her and visiting in New York and I remember the name Mertz.
My info comes from a Schiffert Bible. I have a bit more info if interested.