Hi-This is the only LORANCE family listed in the 1900 Indian Territory census:
1900 Chickasaw Nation, Ind. Terr., Duncan, pg. 25, ED 165, sheet 26b, 5 July: 469/487 William M. Lorance, w/m, Feb. 1870, 30, married 7 years, b. TX parents b. TN Florence R., wife, June 1877, 22, 3 children/3 living, b. TX parents b. IL LAURA, dtr., Dec. 1893, 6, b. Ind. Terr. *********** Jessie R., dtr., Oct. 1897, 2, b. Ind. Terr Evea?, dtr., Feb. 1900, 3/12, b. Ind. Terr.
They do have a daughter named Laura, altho birth years don't match.Maybe this will help you one day in your research.