| Roles | Competed in Olympic Games |
|---|---|
| Sex | Male |
| Full name | Henry Berry•Slack |
| Used name | Henry•Slack |
| Born | 31 March 1877 in Chicago, Illinois (USA) |
| Died | 18 July 1928 (aged 51 years 3 months 18 days) in San Francisco, California (USA) |
| Affiliations | Chicago Maroons, Chicago (USA) |
| NOC |  United States |
Henry Slack competed for the University of Chicago. He was a Chicago native but worked as a superintendent of a soap factory in 1907 in Somerville, Massachusetts when he married Georgiana Graham. Slack worked in New Orleans at the time of World War I as a superintendent of byproducts for the Southern Cotton Oil Company. The peripatetic Slack died in San Francisco.
Personal Bests: 100 – unknown; 200 – 22.0 (1900); 400 – unknown.
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 1900 Summer Olympics | Athletics | USA |
Henry Slack | |||
| 100 metres, Men (Olympic) | 3 h6 r1/3 | |||||
| 400 metres, Men (Olympic) | 3 h3 r1/2 |
