Amy Roberta (Berta) Ruck, Mrs. Oliver Onions (1878 -1978) was a British writer of several short stories and over 90 romance novels from 1905 to 1972. She also wrote an autobiography and two memoir-style works. As Berta Ruck began to contribute short stories and serials to magazines from 1905. She published her first novel, His Official Fiancée in 1914, which was the subject of two films: His Official Fiancée (1919), silent film directed by Robert G. Vignola and Hans officiella fästmö (1944), Swedish movie directed by Nils Jerring.