Jacob is identified in the deed [AWB 405 folio 43] for the sale of his mother's land after her death in 1848. He is also identified in the 1850 census of Baltimore Co., MD in District 2. He is living with another family.
Father:Johannes "John" MUMMA (b. 23 OCT 1784, Baltimore, MD - d. BEF 1830, Baltimore Co., MD) Mother:Elizabeth ADAMS (b. ABT 1786 - d. ABT 20 JAN 1848, Baltimore Co., MD)