David Alan Hemann was born to Roman and Dorothy Hemann on August 16th, 1959 in Fort Dodge, Iowa, the youngest of six boys. His early education included grades 1-8 at Corpus Christi Grade School and 9-12 at Saint Edmond Catholic High School in Fort Dodge, Iowa. He received his B.A. in Psychology from Loras College in Dubuque, Iowa, his S.T.B. from the Pontifical Gregorian University in Rome, Italy and his M.A. in Sacramental Theology from San Anselmo in Rome, Italy. Fr. Hemann was ordained to the Diaconate on May 3, 1984 at St. Peters Basilica in Rome, Italy. He celebrated his ordination to the priesthood on July 20, 1985 at Corpus Christi Church in Fort Dodge, Iowa.

Fr. Hemann's assignments include: Holy Spirit (Carroll, IA), St. Mary (Storm Lake, IA), Little Portion Community (Eureka Springs, AR), Sacred Heart (Boone, IA), Blessed Sacrament (Sioux City, IA), St. Anthony (Hospers, IA), St. Cecelia and St. Joseph (Sanborn and Hartley, IA), Marian Hall (Sioux City, IA), Sacred Heart (Ida Grove, IA) and Our Lady of Good Counsel (Holstein IA) with the addition of St. Martin (Odebolt), St. Michael's (Sioux City, IA), Pastor of Holy Cross Parish which is a combination of St. Michael and Blessed Sacrament in Sioux City, Iowa. Currently, Fr. David serves as the pastor of two parishes including Saint Mary in Spirit Lake and St. Joseph in Milford, IA.

In addition, Father Hemann is now serving as the Rector of the newly erected Shrine in the Diocese of Sioux City, Trinity Heights-Queen of Peace, located in Sioux City, IA.

Fr. Hemann also founded a charismatic prayer group entitled “LUMEN CHRISTI” (Light of Christ) to pray especially for the renewal of the Church in these dark times. He serves as Charismatic Liaison to the Bishop.

Fr. Hemann has served on the Presbyterial Council. He has also served as Vicar Forane (Dean) of the Southwest Deanery and is a member of several committees including the strategic planning committee for the reconfiguring of parishes in the diocese, the Catholic School Foundation Board, The St Joseph Student Aid Society, and the DAA (Diocesan Annual Appeal) board.

Father Hemann has enjoyed giving spiritual direction to seminarians within the Diocese, sharing with them the joys and privileges of serving God’s people as a priest. He also regularly supplies spiritual direction for those in Deacon formation and those who are already ordained Deacons.

Father has also been involved for several years in teaching homiletics to men in the diaconal formation process.

Throughout these 40 years, Father Hemann has been heavily involved in Catholic schools K-12 throughout the diocese as a teacher and faculty member exercising all his priestly functions.

In addition to his regular priestly activities, Fr. Hemann has been engaged in a music ministry before and throughout his priesthood. He believes that music is the language of the people. Father David's music has lent itself to involvement in several nation-wide ministries of giving retreats, missions, and concerts.

Recently, he was selected to be on the Presbyteral council in the central deanery in the Diocese of Sioux City.

Father David has had the privilege of co-hosting a thirteen-part teaching/musical series on EWTN called “Alive with Baptism.” The series itself won the UCMVA 2003 UNITY AWARD for BEST RELIGIOUS

TELEVISION PRESENTATION FOR CATHOLIC EVANGELIZATION OF THE YEAR. Father Hemann appears on the EWTN series called BACKSTAGE which features Catholic musicians from around the country.

Fr. Hemann has crafted 8 CDs that have helped people to pray, bring consolation and the Good News to them, and build the Kingdom of God. Following are the works released thus far:
Let Nothing Trouble You (1992) A collection of prayers and wisdom that helps bring peace and hope to the anxious heart.
Into the Light (1994) Psalms, Saints and miscellaneous prayers.
In God's Company (1997) A very well received work of traditional Catholic prayers set to music.
Holy Warriors (2000) More prayers with a definite Irish flavor and great variety.
Gathered Wisdom (2007) Songs of experience and wisdom to comfort the heart.
Psalms of David (2009) Psalms to soothe the soul.
Oasis (Instrumental Refreshment) (2011)
Come Holy Spirit (2018) a compilation CD of the above most requested songs.