See at bottom of page Firegals web surrey preliminary report.
I am only going to include here contemporary research (past five years). Research conducted before 2010 may be considered as foundation (including my own work, and work like that of McLennan et al) but out-of-date.
Ainsworth, S., Batty, A. and Burchielli, R. (2013), Women Constructing Masculinity in Voluntary Firefighting. Gender, Work & Organization. doi: 10.1111/gwao.12010