Jackson, Elaine (2005) Riding the tosh horse: women writers of popular romance between the wars PhD, University of Birmingham Topic E. M. Hull Berta Ruck Marguerite Jervis/Oliver Sandys
Jackson, Elaine (2008) "Sievier’s Monthly (1909): Pseudonyms and Readership in Early Twentieth Century Popular Fiction " Book Trade Connections from the Seventeenth to the Twentieth Centuries 245-262 Topic Marguerite Jervis/Oliver Sandys Publishing Older and/or precursor texts (may not be "romance" as now defined)