what was the name of fred sanford sister in law
Best Answer: Fred Sanford, played by Red Foxx, was known for insulting his sister-in-law, the Bible-toting, church lady, Aunt Esther, who disapproved of Fred marrying her sister, Elizabeth. La Wanda Page (1920-2002) played Esther Winfield Anderson. It's absolutely amazing how much trivia one can gleam from Wikipedia.