Harry Gardner was born in Missouri, where he married Arline (Fellows) Gardner in 1913, at the age of 21. He came to Colorado in 1917 and worked as a cattle rancher with his brother. He became a construction worker and road builder for the Forest Service in 1925. He also worked for other Federal agencies, including the Bureau of Public Roads. When the Depression came about, Harry was out of work for a couple of years. During his career he helped build Land’s End Road on the Grand Mesa, Interstate I-70 to the Walker Field airport, the cutoff from south Palisade to Highway 50, and many other projects around Western Colorado. He served as a foreman on CCC jobs and worked multiple other construction gigs until retiring at 72. He was a friend of Evelyn and Jim Kyle. He was a fan of horse racing.
He owned the Latimer-Goodwin Vinegar Works and donated a great deal of money to the hospitals and charities around Grand Junction. His donation to St. Mary's Hospital allowed the establishment of a radiology department in 1949.
An early participant and chronicler of the oil shale industry in Western Colorado. He wrote a history of the regional oil shale industry called The Rock that Burns, published in 1967.