Leon and Maria Adamkiewicz ran a farm in the village of Grębocin (Kujawsko-Pomorskie Province). During World War II, the couple helped a Jew, Jan Reba. They sheltered him in a shed for a few days, after which they arranged a safer hiding place for the man at their friends’ house. Thanks to their help, Jan managed to survive until the end of the occupation. Reba remained a close friend of the Adamkiewicz family for many years.