When Emma Auguste Caroline Koehler was born on 31 August 1882, in Bremen, Soest, North Rhine-Westphalia, Germany, her father, Georg Koehler, was 25 and her mother, Luise Harrig, was 21. She married Wilhelm Diedrich Heinrich Rohlfing on 20 November 1912, in Schinna, Stolzenau, Hanover, Prussia, Germany. She died on 14 November 1949, at the age of 67.