Career
He joined the Russian army voluntarily in 1905 after graduating from the Oranienbaum Military School. In World War I Heinze fought on the Russian side on the eastern front in East Prussia, the Carpathians and Lithuania, and on the South-West Front. In the Estonian War of Independence Heinze became commander of the 1st Infantry Regiment.
In 1919 he became aide to the commander of the 1st Division and later was commander of the division himself.
After the war Heinze worked in the Ministry of Defence and was twice commander of 1st Division. He retired in 1936. He died in Bad Windsheim at age of 91.