| Birth Date: | April 6, 1887 |
| Birth Place: | New York City, United States |
| Death Date: | January 1, 1946 (aged 58) |
| Death Place: | Brooklyn, New York, United States |
| Height: | 1.86m (06.1feet) |
| Weight: | 73kg (161lb) |
| Sport: | Athletics |
| Event: | 100–400 m |
| Club: | I-AAC, Queens |
| Pb: | 100 m – 11.0 (1911) 200 m – 22.1 (1911) 400 m – 49.0 (1909) |
| Show-Medals: | yes |
James Maher Rosenberger (April 6, 1887 – January 1, 1946) was an American track and field athlete and a member of the Irish American Athletic Club. He was born in New York City and died in Brooklyn, New York.[1]
In 1909, at the Amateur Athletic Union (AAU) metropolitan senior championships, held at Travers Island, Rosenberger took first place in 100 and 220 yard dash.[2] The following week, Rosenberger was part of the Irish American Athletic Club's four-man relay team that broke the world's record for the one mile relay, with a time of 3 minutes 20 2/5 seconds. The other three men on the record breaking team were; C.S. Cassara, Melvin Sheppard, and William Robbins.[3]
On April 9, 1911,[4] Rosenberger anchored the Irish American Athletic Club 4×440 yard relay team that broke the world record at Celtic Park, Queens, New York, and set the first IAAF- recognized world record for 4×440 yard or 4×400 meter relay race, in time of 3 minutes and 18.2 seconds. The other members of the world record setting team were Harry Gissing, Mel Sheppard and Harry Schaaf.[5]
Rosenberger participated in the 1912 Summer Olympics, but was eliminated in a 400 m semifinal. Next year he competed in Australia with the AAU team,[6] and in 1915 he became the coach for the Long Island Athletic Club.[7]