I12 Jacob Martz Jr., was born April 13, 1836, and died January 22, 1894 in Brownsville, Maryland. He married Elizabeth D. Lambert, daughter of Joseph Lambert and Sophia Poffenberg.

Children of Jacob Martz and Elizabeth Lambert are:

J1 Gertrude Mertz, died in Washington County, Maryland. She married (1) Elmer Seville. She married (2) Howard Jones September 4, 1890 in Boonsboro, Maryland.

J2 Theodore T. Mertz, born 1854.

J3 Sophia Mertz, born 1856.

J4 Lewis Ellsworth Mertz, born August 1858 in Myersville, Maryland, died 1942. He married Emma Jane Summers December 20, 1887 in Boonsboro, Maryland; Emma Jane was born 1869, died 1956.

J5 Martha E. Mertz, born September 6, 1863; died December 7, 1880 in Brownsville, Maryland.

J6 Caroline Mertz, born 1861.

J7 Albert Mertz, born 1867. He married Emma B. Smith December 03, 1887 in Boonsboro, Maryland.

J8 Jacob Harlan Mertz, born October 22, 1868 in Hagerstown, Maryland; died January 23, 1946 in Blount Twp, Vermilion County, IL.

J9 Mary N. Mertz.

J10 Andrew M. Mertz. He married Elizabeth Bomberger.