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Male Johann M. Lapple Click to view Johann M. Lapple in the family tree

Johann M. was born on February 20th, 1794.1   Johann M.'s father was Melchior Lapple and his mother was Regina D. Pfaffle.  His paternal grandparents were Lorentz Lapple and Maria M. Weik. He had three brothers named Johann J., Johann D. and Lorenz.  He was the second youngest of the four children. He had a half-brother named Lorenz.1 

1 phelps.FTW @ Tree #0841
Further sources/citations:
World Family Tree Vol. 3, Ed. 1 @ Tree #2444, 2444.ftw