Steam Railway and Model Rail editorial assistant Jane Cutteridge will leave the publications on 31 July.
Cutteridge is retiring after working for the company on and off in various roles since 1984. She is yet to be replaced on the Peterborough-based Bauer Media titles.
Steam Railway provides news and features on the world of steam from 13 times a year.
Model Rail, also published 13 times a year, features model news as well as exclusive special content, hints, tips and videos.