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According to the 1851 census his son William bn 1840 and son John bn 1843 were both born in Bridgewater

Do you have b/c may help with an address? Digital image available from GRO indexes cost £3

POPE, WILLIAM       mmn LOCK 
GRO Reference: 1839  S Quarter in BRIDGWATER UNION  Volume 10  Page 296

John Pope married Charlotte Lock on 17 Sept.1838 Aller, Somerset
his res Bridgwater, hers Aller, his occupation sawyer

Added

William Pope Baptism 7 Jul 1839 Bridgwater St Mary, Somerset
Father  John, labourer Mother   Charlotte abode B’Water

Johan Bernhard
Relationship   Son
Residence Age   20
Birth Date   22 apr. 1851 (22 Apr 1851)
Year range   1871-1880
Residence Place   Brastad, Göteborg och Bohus (Göteborg), Sverige (Sweden)
Village, Farm, or Croft   Sköllungen Skatte
Date Moved Out of Parish   1879
Occupation   Sjöman
Household Members (Name)   
Johan Adolf Bärgström Head
Anna Lovisa Larsdtr  (Wife)

Sjoman" is the Swedish word for "sailor" or "seaman"

The public tree has John & Mary’s marriage certificate

1883 Married in The Registry Office by licence

John Bernard Johnson 30 Seaman Father Oliver Johnson carpenter 

Mary Elizabeth Davies  24 Father David deceased
amendment made at side for David read Herbert

Information would need to be verified there is a public tree on Anc* y if you have access with a lot of info including some pictures

JOHN BARNARD (JOHAN BERNARD BORGSTROM) JOHNSON
BIRTH 22 APR 1851 SKOLLUNGEN, Brastad, Västra Götaland, Sweden
DEATH 17 JUL 1928  8 WAUNFELIN, Abersychan, Monmouthshire, Wales

Parents

JOHAN ADOLF BORGSTROM
BIRTH 26 APR 1818  SKOLLUNGEN, Brastad, Västra Götaland, Sweden
DEATH 6 JUL 1887 SKOLLUNGEN, Brastad, Västra Götaland, Sweden

Anna Lovisa Larsdotter
Born 10 MAR 1825 ANGARD, Brastad, Västra Götaland, Sweden
Died 24/01/1895 SKOLLUNGEN, Brastad, Västra Götaland, Sweden

This transcript is on Anc*y Sweden, Select Baptisms, 1611-1909

Johan Bernhard Borgstrom
Birth Date   22 apr. 1851 (22 Apr 1851)
Baptism Date   27 apr. 1851 (27 Apr 1851)
Baptism Place   Brastad, Goteborg Och Bohus, Sweden
Residence Date   1851
Residence Place   Brastad, Göteborg och Bohus, Sweden
Father   Joh. Ad. Borgstrom
Mother   Anna Lovisa Larsdr
FHL Film Number   13271

AI says:-

Turner Street in the Garngad area of Glasgow was historically located off Garngad Road, which is now known as Royston Road. The street itself no longer exists.

I don't know if there's any connection to Winnie Frader who married 1914 Bangor 

Trevor Wilks Gamage age 4 Born 22 Mar 1877
Baptism    27 Apr 1881 Swansea St Mary,  Father   Elias Gamage Mother Esther

Trevor Gamage
Record Type   Admission
Admission Date   8 Jul 1911
Institution   Brecon
Institution Place   Breconshire, Wales
Death Date   19 Apr 1912
Death Place   Breconshire, Wales

Trevor Gamage age 33 abode The Brecon & Radnor Asylum
Burial  22 Apr 191? Talgarth, Breconshire

On the off chance I checked his d/c he died 19 April 1912 informant medical superintendent of the Asylum

Trevor Gamage of 12 Kensington Terrace Swansea died 19 April 1912  at The Brecon & Radnor Asylum Talgarth
Administration 12 March 1915 to Annie Xylandar (wife of Otto)

Otto Xylander
Record Type   Marriage Banns
Marriage Banns Date   30 Mar, 6 April,13 April 1913
Marriage Banns Place   Cockett, Glamorganshire, Wales
Marriage 20 Apr 1913
Residence Place   Swansea St Mary
Spouse   Annie Gamage

Annie Xylander died age 76 - 1951 Jul-Aug-Sep Swansea Volume 8b Page   520

Annie Xylander Alias Annie Gamage
Nationality   German
Birth  13 Sep 1876 Birth Place Clydach, Swansea
Image to view on Anc*y UK, World War II Alien Internees, 1939-1945

I'm not sure but I think Annie Gamage maybe nee Llewellyn and married Trevor Gamage 1905