Donnelly (October 9, 1849 – October 1, 1890) was an American professional baseball player for three seasons in the National Assiciation in 1871, and 1873 to 1874.
According to Retrosheet, Pete used the name John Donnelly when he played for Washington and PhiladelphiaDonnelly died at the age of 40, of phthisis pulmonalis (tuberculosis), in Jersey City, New Jersey, and is interred at St.