Mollie was a Lakota Sioux, a member of the Cheyenne River Sioux band.  Her maiden name is uncertain. Records for her children list her as Mollie Floursent and Mollie Swift Cloud. Find-a-grave lists her maiden named as Cigca.  She married a white man named Alexander Laundreaux about 1875. Mollie was the mother of at least eight children, George, Sophia, Anna, Louie. Philomena, Josephine, Cora, and Martin.  Mollie died May 23, 1952 in Dewey, South Dakoka. 
↑ Year: 1901; Roll: M595_35; Line: 12; Agency: Cheyenne River
Source Information Ancestry.com. U.S., Indian Census Rolls, 1885-1940 [database on-line]. Provo, UT, USA: Ancestry.com Operations Inc, 2007.
Original data: Indian Census Rolls, 1885-1940; (National Archives Microfilm Publication M595, 692 rolls); Records of the Bureau of Indian Affairs, Record Group 75; National Archives, Washington, D.C.
↑ Find A Grave, database and images : accessed 22 December 2018, memorial page for Molly Cigca “Pretty Hair Horse Woman” Laundreaux (Mar 1850–23 May 1952), Find A Grave: Memorial #183370874 citing Saint Johns Catholic Cemetery, Promise, Dewey County, South Dakota, USA ; Maintained by Joe Spears (contributor 48012894) .
↑ Year: 1880; Census Place: Stanley, Dakota Territory; Roll: 114; Page: 197D; Enumeration District: 090; Ancestry.com and The Church of Jesus Christ of Latter-day Saints. 1880 United States Federal Census [database on-line]. Lehi, UT, USA: Ancestry.com Operations Inc, 2010. 1880 U.S. Census Index provided by The Church of Jesus Christ of Latter-day Saints Original data: Tenth Census of the United States, 1880. (NARA microfilm publication T9, 1,454 rolls). Records of the Bureau of the Census, Record Group 29. National Archives, Washington, D.C.
↑ South Dakota, Death Index, 1879-1955 [database on-line]. Provo, UT, USA: Ancestry.com Operations, Inc., 2004. Original data: South Dakota Department of Health. Index to South Dakota Death Records, 1905-1955. Pierre, SD, USA: South Dakota Department of Health.
"United States Census, 1910," database with images, FamilySearch (https://www.familysearch.org/ark:/61903/1:1:MPXT-ZDC : accessed 8 January 2021), Mollie Lamedreaux in household of Alexander Lamedreaux, Dewey, South Dakota, United States; citing enumeration district (ED) ED 114, sheet 17B, family 140, NARA microfilm publication T624 (Washington D.C.: National Archives and Records Administration, 1982), roll 1475; FHL microfilm 1,375,488.