Thanks to Ehmer Frankfurt reached the runner-up spot and qualified for the final round to the 1928 German football championship.
On 8 July 1928, Eintracht lost 3–1 at Müngersdorfer Stadion to SpVgg Sülz 07.
In total, Ehmer appeared in 13 final round matches, scoring 18 times.
Though he shortly returned from retirement and appeared as a guest player at VfL Benrath in 1939–40 As a coach, he worked for Union Niederrad.
This biographical article related to association football in Germany, about a forward born in the 1900s, is a stub.