Another document that miraculously appeared on Ancestry is the April 12, 1928, marriage certificate of Hilda Wohlgemuth and Herbert Friedrich Peiser. Peiser is described as a merchant from Breslau.

We learned that Heinrich Wohlgemuth died in 1917 from Hilda's affidavit. But we did not have his actual death certificate until it showed up on Ancestry courtesy of the Berlin Landesarchiv. Here it is. The date is actually October 21, 1918. His death was reported by Wilhelm Cohn. Born in Preußisch Stargard. Living at the same address as at the time of his mother's death in 1910. I can't read the cause of death. 

Our grandmother's grandmother was Frederike Wohlgemuth, nee Paechter. She  lived until age 72 and died in 1910 at the address in Danzig of the third Wohlgemuth brother, Heinrich. 

One of the treasures from the Berlin Landesarchiv Wohlgemuth files is the two-page typescript affidavit submitted in 1958 by Hilda Wohlegmuth Leibman in her restitution case against the Germany government. In it, she provides a detailed accounting of Betty Wohlgemuth's assets that were illegally seized by the Nazi authorities.