NameElizabeth Mertz 
Birthabout 1803
Parent-Proof notes for Elizabeth Mertz
Elizabeth was listed third among his daughters in her father’s will. Meiser listed Elizabeth fifth among the daughters and said she married Mr. Witmer. There was an Elizabeth Witmer age 47 living in Hartley Township with husband Peter in the 1850 Census and that birth year would be just about right, so I have assumed it was indeed Peter’s daughter.
Census History notes for Elizabeth Mertz
1850. An Elizabeth Witmer, wife of Peter, age 47 [1803] lives in Hartley Township, Union County. Is this she?