There is a second Maggie Oxpring born 1902 in the Wortley registration district, which also includes Shire Green.
I have not researched this one. The Maggie that married Francis Rigney did so in 1923 third quarter in the Sheffield registration district of Yorkshire. The other Maggie Oxspring married Arnold Hollingsworth in 1929 first quarter also in the Sheffield reg. district. Birthdates make Maggie of 1902 more likely to marry in 1923 and Maggie of 1905 to marry in 1929, but that is only statistics and not fact. Cure: get Maggie's marriage licence; minimum charge at Ancestry unfortunately is US 38 due to their air mail mailing policy; maybe you can get a lookup for free thru this board or at the Sheffield Genealogical group. The BMD index cites volume 9c page 1233 for the Oxspring=Rigney marriage, good luck!