On Aug. 28, 1959, Denver Archbishop Urban J. Vehr established Holy Trinity Parish. Land was acquired from A.V. (Tony) Venetucci, who sold 5.6 acres to the parish. Venetucci returned half of the purchase price as a donation in memory of his brother Rocco, who had died in a well explosion on the property 15 years before.
Father John L. Aylward, a young priest from St. Thomas Seminary in Denver, was named founding pastor. When he arrived, Holy Trinity had 450 families but no buildings, so Father Aylward said Mass in the Crazy Cat Lounge, a bar on North Nevada Avenue. In January 1960, the 5-month-old parish commissioned architect Gordon Sweet and the Bickley Construction Company to plan and build a gymnasium/community center which could serve temporarily for worship.
Upon Father Aylward’s death in 1963, Father Walter Jaeger became the second pastor of Holy Trinity. Father Jaeger broke ground with a golden shovel on a $250,000 school in January 1965, and a year later, it opened.
In April 1971, Father Edward T. Madden came to Holy Trinity and, while he did not build anything at the parish, he stressed the need for a new church and strengthened the parish’s missionary role.
Father Michael A. Walsh became Holy Trinity’s fourth pastor in Sept. 1976. In January 1977, the parish council recommended that a new church be built for the rapidly growing parish, which now numbered 950 families.
The last pew was set in place in June 1979, two months before the parish’s 20th anniversary. In June 1982, Father George V. Fagan arrived and served as pastor until 1985. Father Karl Useldinger served as pastor from 1985-1989; Father John Auer became pastor until 1996. Coco Soper was assigned as parish director when Father Auer left for another pastorate, with nearby Holy Cross priests celebrating the sacraments. Soper was parish director until July 2004, when Father Mark Zacker arrived. He was installed as pastor in September 2005 by Bishop Michael J. Sheridan. Father Jim Williams was appointed pastor of Holy Trinity in February 2008. Father Kizito Osudibia was appointed pastor of Holy Trinity in August 2013.
On December 1, 2016, Fr. Michael Goodyear was assigned to the Parish. His Installation Mass was held December 19, 2016.