Baker was the widow of a World War II veteran.[1] In the 1970s, Baker and others in California objected to the words "concentration camp" on a proposed state historical marker at the site of Manzanar.[2] She opposed efforts to designate Manzanar a national historic site.[1]
Baker downplayed the suffering of Japanese-American internees during the war.[1] She justified Japanese-American Internment, and opposed the government to formally apologize to interned Japanese Americans, and pay reparations to Japanese-American internees. During testimony in front of the Commission on Wartime Relocation and Internment of Civilians (CWRIC), Baker assaulted Nisei veteran James Kawaminami, attempting to snatch the papers from his hands.[3] She wrote several books on the topic of Japanese-American internment.[2]
Lillian Baker was a founder of the Americans for Historical Accuracy.[1]
She also founded the International Club for the Collection of Hatpins and Hatpin Holders. In 1976, she was regional campaign manager for S.I. Hayakawa's U.S. Senate bid in California.[2] Baker was awarded by the conservative Freedoms Foundation at Valley Forge.[1]
Baker died on October 21, 1996, at the age of 75 at her home in Gardena.[1]