SAM BEBER B'nai B'rith Youth Group Founder, 75 Sam Beber, 75, founder of the B'nai B'rith Youth Organization, died of pneumonia Wednesday in Chicago. In 1924, he organized a Jewish boys group in Omaha, which he named Aleph Zadik Aleph. Two years later as the youngest member of B'nai B'rith's national board, he persuaded it to sponsor the youth program. It became the B'nai B'rith Youth Organization. A girls' counterpart was added in 1944. More than 650,000 youngsters have participated in its programs and the current enrollment is more than 40,000. Born in Omaha, Mr. Beber gradu- ated from Creighton University law school there. He was in business in Omaha and later became a partner in American Community Builders, which developed Park Forest, Ill., in 1946. An early planned community, it is now a city of 50,000. Mr. Beber maintained his home in Omaha, where he was active in many civic and philanthropic affairs. He also served on the national boards of the Boy Scouts, the Jewish Welfare Board and the United Jewish Appeal. He is survived by his wife, Helen Riekes Beber, of the home; a son, Har- ley Beber, of Rockville; two daugh- ters, Mrs. Floyd Abramson, of Chi- cago, and Mrs. Jerald Kattleman, of San Diego, and a sister, Mrs. Paul Landres, of Los Angeles.