Civil Registration Indexes (Births)
Probably:

Ellen Elizabeth W. Thurley, reg. 1st quarter of 1875, Bedford, Bedfordshire, England.
Ellen Thurley, reg. 1st quarter of 1876, Bishop's Stortford, Hertfordshire, England.
Ellen Louise Thurley, reg. 3rd quarter of 1877, Wokingham, Berkshire, England.
Ellen Jane Thurley, reg. 1st quarter of 1881, Kingston, Surrey, England.
Ellen Thurley, reg. 3rd quarter of 1882, Bishop's Stortford, Hertfordshire, England.
Ellen Amelia Thurley, reg. 2nd quarter of 1885, Sheppey, Kent, England.

England, selected births and baptisms:
Probably:

Ellen Elizabeth Wilson Thurley, Church of St. Mary, Bedford, Bedfordshire, England, bapt. 10 March 1875.
Ellen Thurley, Church of the Holy Trinity, Bishops-Stortford, Hertford, England, bapt. 29 October 1882.