They're on the SDHS cemetery site, Mortvedt Cem., Vermillion, Clay Co., SD
ANDERSON, Mary, d. 1897; Johane, d. 1907; Rasmus d. 1914.

Census of 1900, Waverly, Codington Co., SD: ANDERSON
Rasmus, b. "Mary" 1876, he & parents b. Norway, imm. 1896, RR Foreman
Wf. Johane, b. Apr. 1870, MN, parents b. Norway, married one year [?] had one child, Arden, b. Sep. 1899, MN.

--not my family