[2][3][4][5] Kajiwara was born on November 15, 1876, in Fukuoka, Japan, to a samurai family of artists and art lovers.
[8] Kajiwara was married on June 6, 1936, in Queens, New York, to Fern Horton Searls of Wisconsin, who had been employed as a social service worker at the Washington University clinic.
Kajiwara did photographic work for The Great River, a book by Sylvester collecting his paintings of the Mississippi.
[1] Kajiwara worked in a photographers' studio in Seattle, Washington, then went back to Japan, where, at the request of the government, he spent several months organizing photography clubs.
He then returned to the United States, moving to St. Louis at the behest of a company that made photographic plates and wanted him to take charge of its studio at the Louisiana Purchase Exposition of 1904.
[19] Kajiwara left St. Louis in February 1936, telling reporters that the Great Depression had made earning a living through photography and painting too difficult for him.
[8] After his departure from St. Louis, his studio was to continue in his name, being run by Oswald Moeller, his assistant, and Myrtle Bone, his secretary.