BERLIN (AP) — Research suggests that the family of Anne Frank, the world-famous Jewish diarist who died in the Holocaust, attempted to immigrate to the United States and later also to Cuba, but their efforts were thwarted by America's restrictive immigration policy and the outbreak of World War II.

The Anne Frank House in Amsterdam said Friday documents indicate that Anne's father Otto tried twice to get his family the needed papers to go to the United States and later also appears to have applied for a visa to Cuba.

The Frank family's escape efforts were in vain and the family eventually went into hiding in Amsterdam on July 6, 1942 — exactly 76 years ago.

They were ultimately deported to Auschwitz. Only Otto Frank survived.