When Martin Krämer was born on 18 November 1717, in Oferdingen, Reutlingen, Reutlingen, Württemberg, Germany, his father, Johann Jacob Krämer, was 32 and his mother, Barbara Nägel, was 37. He married Margarethe Schietinger on 23 February 1745, in Reudern, Nürtingen, Esslingen, Baden-Württemberg, Germany. They were the parents of at least 2 sons and 3 daughters. He died on 19 January 1758, in Raidwangen, Nürtingen, Württemberg, Germany, at the age of 40.