A State of California law scheduled to take shortly requires insurance companies doing business in the state to publish the names of owners and beneficiaries of Holocaust-era policies, so a regular check of the California Comptroller's site is a good idea. Assets may be held in Israel, as well. In the early 1930s, thousands of European Jews opened accounts at Anglo-Palestine Bank. Under British Mandate regulations the funds were later frozen, classified as belonging to residents of enemy countries. While many account owners and heirs had been lead to believe the money was transferred to Britain, it was later discovered it had never left the country.
Claimants have six months in which to present claims.
After a six month processing period, unclaimed funds will be transferred to the Custodian-General. Note that in addition to bank accounts, a number of European Jews invested in land. After the war, abandoned parcels were transferred to the Jewish National Fund. Subsequently the Custodian-General took possession, but in some cases, title passed to the Civil Administration in the territories where the land was located. Your shares may have value.