President-elect George Bush's son and grandson will travel to Soviet Armenia on Christmas Day to help distribute American aid to earthquake victims, Soviet officials said Friday. Soviet Foreign Ministry spokesman Gennady I. Gerasimov told the official Tass news agency that John E. Bush and George P. Bush "will participate in a ceremony of transferring to Armenia relief aid from the United States." The aid will include medicine, medical equipment and toys from the Americares charity for children who survived the Dec. 7 quake, which killed at least 55,000 people, Tass said. A U.S. embassy source confirmed the trip.