John Joseph Eagan (born April 22, 1870 in Griffin, Georgia; died March 30, 1924 in Asheville, North Carolina) was an American industrialist and co-founder of the American Cast Iron Pipe Company (ACIPCO).
Eagan was the son and only child of John Joseph and Mary V. Russell Eagan of Georgia. His father died of tuberculosis on July 19, 1870. His uncle William Russell, who owned the W. A. Russell Tobacco Company in Atlanta, moved Mary and John to Atlanta. John was studious and excelled in school, studied the Bible and was active, along with his mother, in Christian ministry at Central Presbyterian Church in Atlanta. The Eagans also lived for periods of time with Mary's sister in Cartersville and on the farm of a family friend.
At age 16, Eagan left school and returned to Atlanta. He worked at a grocery store briefly until starting work at his uncle's tobacco store. At age 21, John inherited $6,000 from his grandmother. He invested the money and by 1899 had a fortune of over $73,000. When Eagan was 29, he inherited a $750,000 bequest from his uncle Russell. Eagan continued investing in property, stocks and a few businesses. Humbled by his blessings, Eagan tithed to the church, supported numerous charities benefiting the poor, and used his business influence to improve conditions for workers. A May 13, 1900 entry in Eagan's diary included this prayer: "O Lord show me how to invest Thy wealth to promote Thy glory, so that I may bear much fruit."
Although Eagan had prospered in the tobacco business inherited from his uncle, he did not believe this should be his life's work. In an April 7, 1901 diary entry, Eagan wrote: "My chief end is to glorify God. I believe there are fields of endeavor where I can glorify Him more than in this business. Therefore it is my duty to get into the field where I can glorify Him most."
In 1905, Charlotte Blair, secretary of Dimmick Pipe Company in Anniston, Alabama, along with her brother James W. Blair, interested several southern businessmen in the idea of starting a new pipe plant in Birmingham, Alabama. With its natural resources, access to raw materials and rail transportation, Birmingham was considered a well suited location. Eagan was one of five charter investors in the Birmingham pipe plant, which was named American Cast Iron Pipe Company and came to be recognized by the acronym ACIPCO. He served as the company's president from 1905 until 1915, when James McWane was named president and Eagan became chairman of the ACIPCO Board of Directors. McWane left ACIPCO in 1921 and Eagan began a second term as president, serving in this office until days before his death in 1924.