I recently purchased the subject studio portrait of sisters taken by Camp, Geneva, NE.It is identified on the back of the mount in period handwriting:
"Bertha Adams, age 10 yrs. and Josie Adams, " 5 yrs.
These individuals appear in a public member tree posted on ancestry.com.They are listed in the 1800 U.S. Census data for Bell Prairie, Franklin Precinct, Fillmore Co., NE; the 1885 Nebraska State Census data for Geneva village, Fillmore Co., NE; and the 1900 U.S. Census data for Franklin, Fillmore Co., NE.
Bertha N. Adams, born Jan 1875 in NE, and Josie B. Adams, born Nov 1879 in NE, were daughters of a farmer, Austin Adams, born Aug 1836 in OH, and Josephine (maiden name unknown), born about 1842 in OH.Siblings were Vesta Adams, born about 1868 in OH, and Erwin Carver Adams, born Jun 1869 in OH, died about 1946 in NE.