Marguerite Jackson was born on May 1, 1916 in Durham, England, UK, daughter of Hannah, and John Jackson, an inspector of schools. On 1937, she obtained a BA with honours and on 1957 a MA at Durham University. She worked as Grammar school English teacher from 1938 to 1973. On 5 April 1956, she married Jacob "Jack" Lazarus. She published Children's fiction as Marguerite J. Gascoigne, and later gothic romance novels as Anna Gilbert. Marguerite died at 88, on 24 September 2004 in North Yorkshire, England.