Imogen married Roi Partridge in 1915, and had Gryff, their first son, later that year. The twins, Rondal and Padraic, were born in 1917. She later said:
"Didn't I spend an enormous amount of time, doing this kind of stuff? Well I mean, I had three children in two years, and what could I do? Well, I didn't have any choice; I couldn't get out of the garden, out of the yard. I was always there. But, it got me back into working."