Ernie Banks, the greatest power-hitting shortstop of the 20th century and an unconquerable optimist whose sunny disposition never dimmed in 19 seasons with the perennially stumbling Chicago Cubs. Ernest Banks was born in Dallas on Jan. 31, 1931, one of 12 children of Eddie and Essie Banks. His father, a former semipro player in black leagues in Texas, picked cotton and worked as a janitor in a grocery chain. His mother wanted him to become a minister, like one of his grandfathers. Banks played softball (there was no baseball team) at Booker T. Washington High School in Dallas as well as football, and he competed in track and field. During his high school summers, he toured with a black semipro baseball team, the Colts, based in Amarillo, Tex. After graduating from high school in 1950, Banks played one season for the Kansas City Monarchs, then spent two years in the Army, returned to the Monarchs, and was sold to the Cubs in September 1953 for $10,000. Banks was married four times. He and his fourth wife, Liz, who is among his survivors, adopted a newborn girl, Alyna, when he was 77; he had twin sons, Joey and Jerry, and a daughter, Jan, with his second wife, Eloyce. His first three marriages ended in divorce. A complete list of survivors was not immediately available.