Joan Mason

Golden Age Origin
Joan Mason was an American crime reporter who wrote for The Bulletin,Daily Blade and Daily Planet at different points of her career. She was Dan Garret's on-again, off-again girlfriend. She never figured out that her love interest was secretly the Blue Beetle, but otherwise, she was fairly smart and capable. And while she mostly appeared in Blue Beetle stories, she briefly had her own feature during the mid-1940s.

Golden Age Apperances

 * All Great Comics
 * Blue Beetle #4,13,31-41,47-48,57-60	
 * Book of All-Comics #1
 * Everybody's Comics #1 [1944 series]
 * Mystery Men Comics #15
 * Phantom Lady #13
 * Zoot Comics #7