As a Senator, she was a tireless advocate for literacy.

On a national level, he was a tireless advocate for the arts.

She was a tireless advocate for seniors and senior services until the time of her death.

Over the course of his career, Cohen has been a tireless advocate for human rights.

He continued to be a tireless advocate of evolution, science education, and human service.

She was to be a tireless advocate for him.

He has been a tireless advocate for smaller government, individual liberty, a strong national defense and traditional values.

Jill was a tireless advocate for children, particularly those who were the most vulnerable.

Crawford was a tireless advocate of what we would today call "management by walking around."