It's not entirely clear to me, from the previous newspaper item I referenced, whether the husband mentioned was George Riddell or not. This newspaper item seems to suggest it was, as it's seems unlikely Florence married twice during the war period.
This item also a bit of info about her family, which may help.
Leeds Mercury
19 Feb 1935
A Friendly Critic And A Gallant Mother
Some Writing People
- another cheerful author
- a woman, no highbrow, but a popular entertainer
- Florence Riddell's life story,
- told in "I Go Wandering"
- the youngest child of a family of girls
- she refused to face the prospect of staying home all her days
- she wanted to see the world and do things
- she began by becoming a governess in a Parsee family in Bombay
- then in war time she married a young Scotsman
- she wanted, as she used to say, do her bit
- when a baby arrived that became difficult
- but she decided to run a boarding house
- cholera came and she determined to flee India
- so the family went off to Kenya
- where for a a time Florence ran a school
- she had some queer colleagues
- but all did not go well and then the husband died
- she was left without money
- and the responsibility of supporting herself and her child
- it was then she decided to try writing
- and put almost everything she knew into "Kenya Mist",
- which found a publisher and became a newspaper serial
- under the title "Love and the Lions"
- Florence had found her true career
