Did Mrs Butterworth own Aunt Jemima?

No, Mrs. Butterworth and Aunt Jemima are not related brands, nor did one own the other. Mrs. Butterworth is a brand of syrup owned by Pinnacle Foods, while Aunt Jemima, which has been rebranded as Pearl Milling Company, was owned by Quaker Oats. Both brands feature characters inspired by African American culture, but they represent different products and companies.