of Granny. Despite considering her to be too buxom for his vision of the character as a small and wiry woman, Henning allowed her to test anyway. Irene Ryan ultimately won the role; according to Henning, "Bea took one look at the way Irene did the part and said to me, 'There's your Granny! He additionally took Benaderet's suggestion of casting Harriet MacGibbon as Granny's rival Margaret Drysdale. Henning created for Benaderet the supporting character of Cousin Pearl Bodine, the middle-aged widowed mother of Jethro Bodine (Max Baer Jr.) and cousin of main character Jed Clampett (Buddy Ebsen), whom she convinces to move from his humble home in the Ozarks after he strikes oil on his property and becomes a millionaire. Prior to shooting the pilot, Benaderet enlisted a dialect coach to help her learn a hillbilly accent. Impressed with her performance while screening the pilot to potential sponsors, Henning made Cousin Pearl a recurring character in the 1962–63 first season as she moved into the Clampetts' Beverly Hills mansion, feuded with Granny, and pursued oil tycoon Mr. Brewster (Frank Wilcox) as a love interest. Bluegrass duo Flatt & Scruggs, who performed the show's opening theme, recorded a comedic serenade in 1963 titled "Pearl Pearl Pearl" and Benaderet was pictured on the single's cover. Benaderet described Pearl's curly hair as "just my mental image of the character. ... Pearl played the piano for the silent movies and she saw such high fashion and ridiculous hairdos. She could read and write, and the curled hair seemed to Pearl the height of smartness." Henning had long admired Benaderet's talents and strove to create a starring vehicle for her, as he felt she was worthy of headlining her own series after years of supporting parts. When CBS granted him an open time slot after the massive success of Beverly Hillbillies, he crafted the 1963 rural sitcom Petticoat Junction around Benaderet, starring as Kate Bradley, the widowed proprietor of the Shady Rest Hotel. Cousin Pearl was consequently written out of the Beverly Hillbillies storyline as having moved back home. The character of Kate represented Benaderet's first straight role: "Kate Bradley is different from the characters I've played in the past. She has to walk a fine line between being humorous and tender. The other women I've played were strictly for laughs." Benaderet and director Richard Whorf auditioned the young actresses who would play Kate's