[a] The diocese comprises nine counties in the state of Texas: Collin, Dallas, Ellis, Fannin, Grayson, Hunt, Kaufman, Navarro and Rockwall.

[4] Reverend Joseph Martinere made journeys of over hundreds of miles through swamp and forest to reach the area.

[5] Wanting to retire the diocesan debt, Brennan tried to use the Ursuline Academy of Dallas as collateral property to the banks for better financing.

[10] The Texas Catholic was accused by Brennan's priests of being a publication "whose sole reason for existence seemed to be...to praise the bishop and his vicar general.

[12] In a letter pleading his cause to the Congregation for the Propagation of the Faith in Rome, he argued for the elevation of Dallas versus the predominantly Hispanic Diocese of San Antonio.

Janssens also noted that within the Diocese of Dallas "there are signs of much dissatisfaction on account of the arbitrary and uncanonical actions of the Bishop.

[5] Leo XIII named Reverend Edward Dunne from the Diocese of Chicago as the second bishop of Dallas in 1894.

[15] When Lynch died in 1954, after 43 years as bishop, the Diocese of Dallas-Fort Worth had over 200 religious and charitable institutions founded by him.

[24] During his tenure in Dallas, Grahmann created new parishes for Hispanic, Vietnamese and other Catholics moving into the diocese.

[15] In 2010, Benedict XVI named Reverend J. Douglas Deshotel and Monsignor Mark J. Seitz as auxiliary bishops of the diocese.

[26] Pope Francis in 2016 named Bishop Edward J. Burns from the Diocese of Juneau as Farrell's replacement.

Bishop Tschoepe attended a presentation at Holy Trinity Seminary in Dallas by Reverend Paul Shanley from the Archdiocese of Boston.

During the presentation, Shanley spoke of the positive effects of sexual relations between adult males and teenagers.

[28] In February 2005, Shanley was convicted in Massachusetts of indecent assaults and statutory rape; he received a sentence of 12 to 15 years in state prison.

Bishop Grahmann testified in 1997 that he had never read the therapist's report[31] and allowed Kos to continue his ministry.

"[34] In April 2020, the diocese announced the removal of Reverend Oscar Mora, a visiting priest from the Archdiocese of Villavicencio, from ministry in Dallas.