Civil Registration Indexes (Births)
Probably:

Muriel Jane A. Stamp, reg. 4th quarter of 1881, Kensington, London, England.
Muriel Stamp, reg. 4th quarter of 1900, Patrington, Yorkshire East Riding, England.
Muriel Marchant Stamp, reg. 3rd quarter of 1901, Doncaster, Yorkshire West Riding, England.
Muriel Elizabeth Stamp, reg. 3rd quarter of 1902, Doncaster, Yorkshire West Riding, England.
Muriel Stamp, reg. 2nd quarter of 1904, York, Yorkshire East Riding, England.
Muriel Stamp, reg. 2nd quarter of 1907, Barnet, Middlesex, England.
Muriel Jessie Stamp, reg. 2nd quarter of 1908, Glanford Brigg, Lincolnshire, England.
Muriel Stamp, reg. 4th quarter of 1908, Sculcoates, Yorkshire East Riding, England.
Muriel Stamp, reg. 1st quarter of 1909, South Shields, Durham, England.