Missionite (inhabitant of Mission)

“Missionite” is the name of an inhabitant of Mission, Texas. The name “Missionite” has been cited in print since at least 1909.
 
     
Wikipedia: Mission, Texas
Mission is a city in Hidalgo County, Texas, United States. The population was 77,058 at the 2010 census Mission is part of the McAllen–Edinburg–Mission and Reynosa–McAllen metropolitan areas.
 
OCLC WorldCat record
The missionite
Publisher: Mission, Tex. : [s.n.], 1900-
Edition/Format:  Journal, magazine : Periodical : English
 
The Portal to Texas History
9 October 1909, Brownsville (TX) Daily Herald, pg. 5, col. 4:
John J. Conway and Miss Nellie Conway came down from the land of the Missionite last night.
 
2 December 1909, Brownsville (TX) Daily Herald, “Mission Matters,” pg. 4, col. 1:
Mission, Texas, Nov. 30, 1909.—Thanksgiving was observed at Mission in regal style. All the stores closed at noon, and in the afternoon the Missionites witnessed a very interesting game of ball between the “McAllen Grey Wolves” and the “Mission Coyotes.”
 
31 July 1936, Brownsville (TX) Herald, “Mission Defeats Raymondville 4 to 1 in Hurling Duel,” pg. 6, col. 4:
SAN BENITO, July 31.—The Raymondville contingent was knocked out of the undefeated class in the Valley-wide softball tournament here Thursday night when it went down 4-1 before the Missionites, who were making their first start in the tournament.
 
1 August 1938, Brownsville (TX) Herald, pg. 3, col. 3:
Missionites Turn
To Travel As End
Of Summer Nears

MISSION—Mr. and Mrs. R. J. Rome left Saturday for a two-weeks’ vacation trip to Houston and Port Arthur.
 
The Portal to Texas History
13 January 1972, Rio Grande Herald (Rio Grande City, TX), “Tom Landry Tries Again For Elusive Super Prize,” pg. 5, col. 3:
A national telecast will attract millions of other fans, including about 13,000 Missionites.
 
Google Books
God’s Coach:
The hymns, hype, and hypocrisy of Tom Landry’s Cowboys

By Skip Bayless
New York, NY: Simon and Schuster
1990
Pg. 51:
“The Tourist Mecca of South Texas,” Mission now calls itself, and some Missionites now remember that, by golly, Tommy may have been born in a manger.
   
The Monitor (Rio Grande Valley, TX)
‘She Came to the Valley’ reunion coming up
July 22, 2008 8:36 AM
Thirty one years ago, stardom came to the Valley.
 
Oscar-nominated singer and actress Ronee Blakley lit up the town of Mission when she played an iron-willed pioneer woman who settled near the Texas-Mexico border during the Mexican revolution in the film She Came to the Valley. In the movie, she and her husband Pat (Dean Stockwell) became involved in a battle between Pancho Villa and Mexican soldiers. The film was based on a 1943 novel by Missionite Cleo Lawson.