"Marilyn" is a group of two titles with related contents.

Issues up to about 1959 included issue numbers (possibly at the time Amalgamated Pess was sold).

Marilyn was incorporated into Valentine on 25 September 1965.

The magazine was initially published by Amalgamated Press, which was acquired by the Mirror Group (Fleetway Publications) in 1959. Fleetway was merged into IPC in 1963, although the Fleetway name continued to be used on IPC publications until after the merger with Valentine (up to 1968, when IPC publications were reorganised into IPC Magazines.

The exact issue when the publisher changes is unknown.