Notes:
Josiah and Aaron are listed in the 1850 and 1860 census of Warwick as being the same age, so they were either twins or one was born at the beginning of the year and the other at years end.
Since Josiah's birth date was recorded in the church records, we assume that Aaron was born on the same day. Aaron can not be found the 1860 census.
1850: Warwick, Lancaster, Pennsylvania, USA
John Dengler 65
Henrietta Dengler 63
Charlotta Dengler 26
Catharine A Butzer 12
Aaron Mumana 5
1850: Warwick, Lancaster, Pennsylvania, USA
John Mumma 31
Catharine Mumma 31
Josiah Mumma 6
Aaron Mumma 6
Jebina Mumma 3
Zachariah Mumma 0
1860: Warwick, Lancaster, Pennsylvania
Post Office: Lititz
John Mummah 35
Catherine Mummah 46
Aaron Mummah 15
Josiah Mummah 15
Savanna Mummah 13
Albert Mummah 10