there's a Patrick Roy Pryor on the 1939 register in the Kerrier registration district, his death was registered in 2002 with a date of birth of 5 May 1921, but no birth reg in that name.
There is however a birth reg for
Patrick Roy Persence june qtr 1921 Helston vol 5c pg 279 mmn Persence
and then a marriage reg
Mabel Persence dec qtr 1923 Helston vol 5c pg 391 to Richard Pryor
Death reg Mabel Pryor 1988 Kerrier gives date of birth of 10 Jan 1894. Probate record gives an address in Breage.
1901 census for Mabel
https://www.familysearch.org/ark:/61903/1:1:XSHX-9JB
& 1911
https://www.familysearch.org/ark:/61903/1:1:X7LY-PCZ

For info. If you use the advanced search on the latest census living in Breage, Cornwall
Mabel Presence 1894 Breage
Patrick Roy Presence 1921 Breage
Evie Presence born 1912 Breage
John Henry Cornish 1845 Breage
Mary Cornish 1872 Breage
Eva Dunn Persence Dec
1912 Helston 5c 266
mmn PersenceDon’t know if there’s a connection with
Samuel C Pryor who is with Patrick & Mabel in 1939
Death
Samuel Coulson Pryor Age: 85
Birth 21 Mar 1906
Registration Date: Jun 1991
Registration Penzance Volume: 21 Page: 350
Samuel’s Birth reg
mmn rosewarneEllen Jane Rosewarne Age: 22
Marriage 15 Dec 1894 Germoe, Cornwall
Father: John Rosewarne
Spouse:
Richard Pryor father Edward
1901 c Piece: 2236 Folio: 73
Edward Pryor 66
Richard Pryor 30Ellen Jane Pryor 28
Edward J Pryor 5 mths
1911 census Samuel Pryor b1906 with mother Ellen Jane and 4 siblings
https://www.familysearch.org/ark:/61903/1:1:X7LY-PRLPRYOR, RICHARD mmn ROSEWARNE
GRO Reference: 1895 J Quarter in HELSTON Volume 05C Page 177
PRYOR, EDWARD JOHN mmn ROSEWARNE
GRO Reference: 1900 D Quarter in HELSTON Volume 05C Page 167
PRYOR, FRANCIS ROSEWARNE
GRO Reference: 1904 D Quarter in HELSTON Volume 05C Page 158
PRYOR, ELLEN JUNE ROSEWARNE
GRO Reference: 1908 M Quarter in HELSTON Volume 05C Page 150
Ellen Jane Pryor age 49
died 1922 reg. Helston
There’s this probate record
Richard Pryor of
Churchtown Breage died 19 Jul
1929Probate 12 Mar
1938 to widow
Mabel PryorEdit to add I think the marriage details posted by Osprey for Richard Pryor & Mabel Persence (1923) is the same Richard Pryor who previously was married to Ellen Jane Rosewarne, Ellen died 1922 and Samuel Coulson Pryor (the son of Richard & Ellen) is living with his step mother Mabel Pryor and her son Patrick. Evie Persence age 24 died 8 Jul 1937