The earliest baptisms, marriages and deaths in San Luis de La Culebra or Poblacion de la Culebra
were recorded in Nuestra Senora de Los Dolores in Arroyo Hondo and Nuestra Senora de Guadalupe in Conejos.
Beginning in 1865, the parish was called San Miguel de Las Costilla.
| LAST NAME | FIRST NAME | DATE OF BIRTH | CHILD OF | PLACE OF BIRTH - NOTES |
| Adams | John L. | 16 March 1932 | Inga | Jaroso |
| Adams | Mary Ellen | 22 May 1891 | John William and Lucy Ellen (Edwards) Adams | Manassa |
| Atencio | Herbert Orlando | 26 Oct. 1940 | Unknown | San Luis |
| Jacques | Donald E. | 17 June 1925 | Unknown | San Acacio |
| Lopez | Ofedes P. | 15 Jan. 1938 | Elizabeth | San Acacio |
| Martinez | Christina | 3 Nov. 1954 | Remundo & Frances (Olguin) Martinez | San Luis |
| Martinez | Maria Bernardina | ? | Manuel (Miguel) Antonio Martin(ez) and Maria Encarnacion Atencio |
San Luis - Baptisms of Costilla |
| Martinez | Maria Catalina | bt. 15 Nov. 1873 | Miguel Antonio Martinez and Maria Encarnacion Atencio |
San Pedro - Baptisms of Costilla |
| Martinez | Maria Josefa | bt. 20 Sept. 1872 | Miguel Antonio Martinez and Maria Encarnacion Atencio |
San Pedro - Baptisms of Costilla |
| Martinez | Maria Juliana | bt. 22 Nov. 1875 | Miguel Antonio Martinez and Maria Encarnacion Atencio |
San Pedro - Baptisms of Costilla |
| Medina | Jose Samuel | 6 Jan. 1922 | Alselmo | Fort Garland |
| Medina | Maria O. | 16 June 1930 | Unknown | San Luis |
| Montoya | Luis "Al" | 5 June 1934 | Unknown | San Luis |
| Sanchez | Horacio Manuel | 25 May 1934 | Jose Ramon & Eulalia (Gonzales) Sanchez | San Pedro |
| St. Clair | Florine Juanita | 21 Sept. 1928 | Unknown | Blanca |
| Vigil | Alfonso "Al" D. | 6 March 1939 | Adolph & Alvinita Vigil | San Luis |
| Vigil | Baby Girl | 14 Apr. 1923 | Francisco & Calarina Vigil | San Luis |