| 1844 | YMCA founded in London, England by George Williams. |
| 1851 | YMCA started in the United State of America by Thomas C. Sullivan, a retired sea captain, in Boston, Massachusetts. |
| 1913 | YMCA was founded in Hattiesburg, Mississippi by Dr. C. C. Hightower, Howard A. Gilliam and Dr. V. L. Isard. Elected trustees were W. S. F. Tatum, George Komp, and Abner Polk. A $50,000 fund raising campaign was begun to underwrite the YMCA’s work. |
| 1918 | YMCA incorporated in Hattiesburg, Mississippi. |
| 1923 | Campsite purchased from L. N. Dantzler Lumber Company, making Camp Dantzler the oldest YCMA in the state of Mississippi. |
| 1959 | J. Maury Gandy Memorial YMCA was completed after a fund drive, which raised $150,000. John W. McArthur was Board President and John Tatum was Chairman of the Building Committee. |
| 1967 | Completed construction of a twenty-five yard swimming pool. |
| 1982 | YMCA and YWCA merged. |
| 1983 | The Family YMCA joined the National Council of YMCAs. |
| 1984 | Building renovations completed at the cost of $100,000. |
| 1985 | The Board of Directors approved a five-year strategic plan for expansion of Y programming. |
| 1988 | Camp Dantzler revitalized with an expanded YMCA Day Camp Program. |
| 1990 | Began capital campaign for current Hattiesburg facility. |
| 1994 | The Family YMCA opened its doors to members at the current location. Gwen James was Board President. The former location was sold to the City of Hattiesburg. |
| 1998 | Purchased a preschool facility to meet increasing community childcare needs. |
| 1999 | Began capital campaign for Petal facility. |
| 2002 | Groundbreaking for Petal facility held in January. |
| 2003 | Petal Family Y opened to the public March 31, at a cost of $3.5 million. |
| 2008 | Expansion and renovation of the Main Facility and Petal YMCA. |
