Are you trying to just fill in the gaps for Phyllis May's siblings or trying to research the family line back through the generations?
Deleted original information that I posted on this thread as wrong familyBirth reg for Phyllis:
RAFFELL, PHYLLIS MAY mother's maiden name MINERS
GRO Reference: 1908 M Quarter in BEDWELLTY Volume 11A Page 159
Marriage:
Marriages Jun 1907
RAFFELL Edwin Bedwellty 11a 199
MINERN Maria Elizabeth Bedwelty 11a 199 (Surname should read Miners)
Married 21st May 1907 New Tredegar Monmouthshire Wales
Possible birth for Edwin:
RAFFELL, EDWIN Mother's maiden name PERRYMAN
GRO Reference: 1879 S Quarter in PLYMOUTH Volume 05B Page 263
1881 census??
https://www.familysearch.org/ark:/61903/1:1:Q27X-SVRNMarriage:
Marriages Mar 1864
Perryman Jane Honiton 5b 31
Raffell William Honiton 5b 31
Possible birth reg for Maria:
MINERS, MARIA ELIZABETH Mother's maiden name TOZER
GRO Reference: 1880 S Quarter in PLYMOUTH Volume 05B Page 283
Possible marriage for Maria's parents:
Marriages Dec 1878
Miners William Henry Stoke D. 5b 574a
TOZEN Elizabeth Ann Stoke D. 5b 574a
TOZER Elizabeth Ann Stoke D. 5b 574a
1881 census for Miners family:
https://www.familysearch.org/ark:/61903/1:1:Q27X-3D76