Me again
have found these
Florence Ann Armstrong - Mar qtr 1883, Ecclesall, 9c, 325
Joseph Armstrong - Jun qtr 1884, Ecclesall, 9c, 323
Clara Armsrong - Jun qtr 1886, Ecclesall, 9c, 333.
Jessie Armstrong - Sept qtr 1889, Ecclesall, 9c, 305.
This is guess work really, based upon your birth date for Florence, she was the only one that popped up for that year. jessie, there were two of, one born in 1877 who died a year later. No Jo's, just one joseph, and a Clara Lydia or the clara shown.
I can find only one marriage for a Clara Armstrong post 1901 in Ecclesall. Two woman and one man on page so not much help. the guy is William greenfield. Jun qtr 1911, Ecclesall, 9c, 757.
Thats all for now, have just checked out Genes Reunited and found something on there but i suspect it may be a posting by you bodger,
Sarah