This is my second attempt to find Haak connections for my family tree. I have a Christian Haak, married to Martha (maiden name unknown). Martha's brother was called Karl.
Christian and Martha had 6 children. Erhardt, Erich, Dieter/Max, Frieda, Betty, and Lotte. Lotte was born 1921, and died 1969. Other dates are unknown however they originated and mostly remained in Hamburg Germany. Any connections?