photo taken circa 1910
UPDATE - This photo has been claimed by a grandson of Anna Berquist, and is going home!
I am not entirely certain who is who, but based on the location of the names on the back of the photo, I surmise that the woman on the right is Anna Berquist and the woman on the left is Olivia Gummerson.
1900 Federal Census, Grand Rapids, Michigan, Hovey Street
ANDERSSON, Carl, head, 47 (Mar 1853 Sweden), imm. 1887, works as machine hand
ANDERSSON, Christina, wife, 44, (May 1856 Sweden)
ANDERSSON, Anna W., daughter, 20 (Mar 1880 Sweden), employed in brass lacquering
ANDERSSON, Ester M., daughter, 15 (May 1885 Sweden), at school
NEILSON, Christina, mother-in-law, 77 (Nov 1822 Sweden)
ERICKSON, Mary C., niece, 7 (July 1892, born in Michigan)
1910 Federal Census, Denver Colorado, Wyandotte Street
BERQUIST, Chas A., head, 36, born in Michigan to Swedish parents
BERQUIST, Anna W., wife, 30, born in Sweden
BERQUIST, Wesley C., son, 3, born in Michigan
1920 Federal Census, Dever Colorado, 2917 W. 25th Ave
BERQUIST, Charles A., head, 45yo, born in Mich. to Swedish parents, works as a painter and paper-hanger
BERQUIST, Anna W., wife, 39yo, b. abt 1881 in Sweden, inn. 1887, nat. 1894
BERQUIST, Wesley C., son, 13, born in Michigan
BERQUIST, Chester H., son, 7, born in Colorado
Ancestry.com has a Berquist fanily tree which shows that Charles Alfred Berquist (1874 MI - 1923 CO) was married to Anna Wilhelmina Andersson of Sweden (1880 - 1956.) She is a daughter of Karl Andersson and Christina Kajsa Andersdotter. She died 18 Dec 1956 in Grand Rapids Michigan.
Son Wesley Charles BERQUIST (1906-1976) worked as a bank clerk in Grand Rapids Michigan and married Evelyn Gertrude Sprick (daughter of Henry Sprick and Christine Pleune) in 1935. They had sons Paul and Phillip.
As for OLIVIA GUMMERSON, I am not able to find any information yet for her.