- GEORGE FREDERICK BARKER- Born October 1959 - 16 THE SQUARE, MARKET SQUARE CHAMBERS, BROMYARD, HEREFORDSHIRE, HR7 4BP 
- PETER FREDERICK BARKER- Born August 1939 - 18 HEREFORD CLOSE, EXMOUTH, DEVON, UNITED KINGDOM, EX8 5QT 
- ANTHONY FREDERICK BARKER- 42 GRAMMER SCHOOL YARD, FISH STREET, HULL, HU1 1SE 
- Kyle Frederick BARKER- Born March 1992 - 19 Darwin Row, Cheshire, England, CH654DG 
- FREDERICK JONATHAN BARKER- Born June 1953 - 76 SANDY LANE, STRETFORD, MANCHESTER, M32 9BX 
- FREDERICK WILLIAM BARKER- Born November 1943 - 90 HALL ROAD, HULL, EAST YORKSHIRE, HU6 8SB 
- ALAN FREDERICK BARKER- Born October 1947 - 417 BRIDPORT ROAD, GREENFORD, MIDDLESEX, ENGLAND, UB6 8UA 
- WALTER FREDERICK BARKER- Born June 1925 - 72 LIME GROVE, EASTCOTE, RUISLIP, MIDDLESEX, HA4 8RY 
- E.L.BARKER & CO.LIMITEDDisolved- 00388724 - Dissolved on 2 November 2023 
- K BARKER & CO LIMITEDLiquidation- 09427432 - Incorporated on 6 February 2015 
- ROGER MARTIN BARKER- IKENSTRASSE 43, DUSSELDORF 40625, GERMANY, FOREIGN 
- RICHARD FREDERICK BARKER- Born December 1946 - 205 BILTON ROAD, RUGBY, WARWICKSHIRE, CV22 7DS 
- CHARLES FREDERICK BARKER- Born May 1961 - 205 QUAKER ROAD, MOORESVILLE, NC 28117, UNITED STATES 
- JOHN FREDERICK BARKER- Born January 1953 - SANDYBROOK LODGE BUXTON ROAD, SANDYBROOK, ASHBOURNE, DERBYSHIRE, ENGLAND, DE6 2AQ 
- FREDERICK WILLIAM BARKER- Born March 1916 - 53 LYNDON ROAD, BRAMHAM, WETHERBY, WEST YORKSHIRE, LS23 6RH 
- FREDERICK JOHN BARKER- 39 THE CRAYKE, BRIDLINGTON, EAST YORKSHIRE, YO16 5YE 
- GEOFFREY FREDERICK BARKER- Born December 1945 - STUD FARM, EAST END, AYNHO ROAD, ADDERBURY, BANBURY, OXFORDSHIRE, OX17 3NW 
- RICHARD FREDERICK BARKER- Born December 1946 - 24 COWSLIP HILL, LETCHWORTH, HERTFORDSHIRE, SG6 4HL 
- DAVID FREDERICK BARKER- Born July 1930 - 5 ALWYNE VILLAS, LONDON, N1 2HG 
- RAYMOND FREDERICK BARKER- FLAT 7, LINCOLN COURT, CHANTRY ROAD, MOSELEY, BIRMINGHAM, WEST MIDLANDS, B13 8DH