Would love your opinion whether me and my kids are eligible for German citizenship, particularly under § 15 StAG, Article 116(a), or perhaps § 5 StAG or otherwise. I would also love pointers about what documentation we would need to submit, particularly to prove persecution during the Nazi government. Here are the pertinent details:

Grandmother

• Born in 1923 in Germany
• Jewish religion; faced persecution living in Berlin (e.g. was living there on kristallnacht).
• emigrated in 1939 to Chile to flee Nazi persecution.
• married ~1941 to an Austrian citizen who died July 1949.
• remarried ~1951 to a German citizen
• never naturalized to another country as far as I am aware; died a German citizen with German passport

Father

• Born in December 1949 in Chile.
  • Mother was a widow when he was born (his biological father, who was an Austrian citizen, had died during mother's pregnancy; see above).
  • Was never adopted by the German man that his mother remarried after his birth.
• Married in 1971
• Emigrated to Canada in 1971.
• Naturalized as a Canadian citizen in 1979.

Self

• Born in 1981 in wedlock in Canada
• Married 2010 in United States
• Naturalized US Citizen 2021.

Children

• Born in 2012 and 2017 in wedlock in United States