That would be fun to talk to them but most have them have passed away by now+
You may wish to contact the Negro League Baseball Players Association at http://www.nlbpa.com. They have a "Contact Us" link which should help you get started with contacting the remaining players from that era.
ANSWER
I wouldn't get too discouraged - the Negro Leagues lasted until the early 60s, so plenty of former Negro Leaguers are only in their 60s and 70s
The Negro Leagues
Hank Aaron was 18 years old when he played for the Indianapolis Clowns in 1952.
The first organized league of teams consisting solely of African-Americans -- it was called the Negro National League -- was in 1920. This first league lasted until 1931. A second league, also called the Negro National League, was organized in 1933. Another league, the Negro American League, was launched in 1937. The former folded after the 1949 season, the latter held on until 1962.
The Negro League
He organized the Negro National League a Negro League Baseball Division that consisted of many Great NLB teams.
Teams that played in the Negro Southern League in 1949 are Atlanta, Gadsden, Mobile, Montgomery, Nashville and Pensacola
The Negro League was a league founded by Ruth Foster. The Negro League let black people play baseball in their own league. The Negro League was the major league for black people. Most people do not believe this but the Negro League was rougher than the major league back around the 1900s. When Ruth Foster died the Negro League shut down. A few years later Gus Greenlee took over the Negro League. He was a manager of a team. He had the team with Sachel Paige on it. If you weren't aware he was the best Negro baseball player.
He was a Negro League manager. He also had a seat on the Negro League Board.
It depends because Satchel Paige played on several minor and major league teams; as well as the Negro League. When he played on the Kansas City Monarch's team (one of the Negro League teams), his number was 25.
Kansas City Monarchs
Negro Southern League was created in 1920.
Kansas City Monarchs
The Negro Leagues
National Negro Business League was created in 1900.
Josh Gibson was a real person. He played in the old Negro League and was elected to the Baseball Hall of Fame in 1972 under the Negro League category.
The Negro League are men and I don't know the rest.
The Negro Fellowship League was originally started by Ida B. Wells.