In 1995, had a song written about her by the band Fossil titled Josephine Baker. In 2003, another musical went on stage, in Belgium, called Simenon et Josephine. It was a musical comedy related to the Maigret year of 2003 in Belgium.
There is no salary cap in MLB. There is however, a luxury tax system which makes it more expensive for a team to carry a high payroll. How it works is that there is a threshold ($189M in 2015); if a team's payroll is above that limit, a tax of 17.5% of the amount they're over by is paid to the league as a fine.
Major League Umpires. There are only 68 umpires in major league baseball and they bargain for salaries and benefits as part of a union, the World Umpires Association. MLB's current labor contract with its umpires ensures starting pay of $120,000 with senior umpires earning upwards of $350,000. ESPN's Jim Caple says the most senior MLB umpires earn about $400,000.