Reinhart Alstadt married Margaret Eltmann around 1848 and they had one son, Henry Alstat (Alstadt). They were divorced in the 1850s and Margaret moved to Illinois with Henry. (Photo at left shows Henry and Margaret Alstat and their family). Henry changed the spelling of his last name from Alstadt to Alstat.
Reinhart served in the Union Army in the American Civil War in the 6th Indiana Infantry. In 1863, he married Martha Newton and this union produced four children. Current lines descended from Reinhart and Martha use the spelling "Alstadt."