(1)
RIO GRANDE CITY, TEXAS. "The town received a post office in 1849; in 1895 the name of the post office changed from Rio Grande City to Riogrande, the name under which it now operates."
Handbook of Texas Online .
(2)
Rio Grande.
Texas Legislative Manual .
Biographical sketch, Judge John Robert Monroe, Volume V, pp. 2325-2326. Born 1851 in Calhoun County, Alabama.
A History of Texas and Texans 1914.
John R. Monroe, birth date 11/15/1851, death date 4/23/1920 on grave marker, interment in Rio Grande City Downtown Historic Cemetery, Starr County.
BillionGraves .
John Robert Monroe, birth date 11/15/1851 in Alabama; death date 4/28/1920 in Rio Grande City, Starr County, Texas; lawyer.
FamilySearch Texas Deaths, 1890-1976 .
Obituary, "Death of Prominent Gio [Rio] Grande City Citizen: Judge J.R. Monroe, Active in Promoting Valley Enterprises, Succumbed to Heart Failure," Mercedes Tribune, 4/30/1920, p. 4, crediting Dr. Hector P. Garcia Memorial Library. Death date Wednesday, 4/28/1920. "He was county judge of Starr county for many years and also represented the district in the legislature two terms."
Portal to Texas History (University of North Texas Libraries) .
Hardy, Daniel. [J.R. Monroe House, (Northwest oblique)], Photograph of the J.R. Monroe House (located at 201 Britton) in Rio Grande City, Texas, January 1, 1980, crediting Texas Historical Commission.
Portal to Texas History (University of North Texas Libraries) .
Texas Historical Commission. [Judge J.R. Monroe House, (South elevation)], Photograph of the Judge J.R. Monroe House (located at 102 Corpus Street) in Rio Grande City, Texas, May 18, 1971, crediting Texas Historical Commission.
Portal to Texas History (University of North Texas Libraries) .
26th Legislature (1899) - J.R. Monroe, postoffice Rio Grande, nativity Alabama, age 47 (born circa 1852), lawyer, 40 years in Texas, member of previous legislature: 24th, Democrat.
Texas Legislative Manual .