For a time, she was active in the Socialist Party of America.

He became a national co-chairman of the Socialist Party of America in early 1972.

In 1919 the Socialist Party of America was split into radical and moderate wings.

In 1877, the Socialist Labor Party of America was founded.

In contrast, the more moderate Socialist Party of America had 40,000 members.

Freeman joined the Socialist Party of America in 1914, when he was 17 years old.

She joined the Socialist Party of America in 1909.

He joined the Socialist Party of America in September 1912.

Johnson joined the Socialist Party of America in 1912.

She was also an organizer for the Socialist Party of America.