From "History of La Crosse County, Wisconsin", 1881, p. 815.
Town of Onalaska
O. P. KJOS, proprietor of Union House, Onalaska; was born in Christiania, Norway, Feb. 6, 1830; came to America in 1860, and to Wisconsin in the fall of 1869, where he began business. His wife, Mary Markred, was born in Norway, in 1836. They were married in 1855; have had eight children - Josephena Polly Antona, born in Norway, June 20, 1856, died at Monmouth, Ill., Aug. 6, 1861; Petronelle Anna May, born Dec. 20, 1857, now Mrs. Johnson; Hulda Marinna, born Aug. 14, 1859, died at Monmouth, Ill., Aug. 6, 1861; Ida Hermana, born June 8, 1862; Josephena Polly Antona, born May 28, 1865, at Chicago; Hulda Mary Ann, born Feb. 12, 1867, died June 6, 1867; Martha Washington, born Feb. 22, 1869, died at Onalaska, Oct. 29, 1870; Olive Mary Ann, born Nov. 28, 1871.
[I am not related to this family and have no further information. I'm posting this as a service and hope it helps!]