Civil Registration Indexes (Births)
Probably:

Mary Maud E. Reeks, reg. 1st quarter of 1896, Islington, London, England.
Mary Ann Reeks, reg. 4th quarter of 1897, Ware, Hertfordshire, England.
Mary Josephine Reeks, reg. 1st quarter of 1900, Holborn, London, England.
Mary Ann Reeks, reg. 1st quarter of 1902, Cannock, Staffordshire, England.
Mary Elizabeth Reeks, reg. 3rd quarter of 1903, Sunderland, Durham, England.
Mary Zillah Reeks, reg. 4th quarter of 1903, West Ham, Essex, England.
Mary Reeks, reg. 3rd quarter of 1908, Darlington, Durham, England.
Mary Catherine Reeks, reg. 3rd quarter of 1909, Hawarden, Flintshire, Wales.