I think there could be something to the reference
'bootmaker for the family in Audley End/Saffron Walden'. Or I could be reading way too much into a couple of references.
The Audley End Estate was owned by the Braybrooke family and walking up the Wedlock tree there are a couple of references which suggest Frederick's father and grandfather, Henry and John, may have worked for Lord Braybrooke. So could 'the family' be a reference to the Braybrookes and could Frederick have worked for them, in one capacity or another, his family already being known to the Braybrookes?
Obviously a lot of speculation without any proof. Essex Archives appear to have a number of records in their collection related to Audley End, may be they might hold some evidence.
Walking up the Wedlock tree, including the references others have already posted...
Frederick Wedlock and Sarah WilsonGRO BMD references:
1853 Q3 Birth - Sarah Wilson (mmn: Cornell); Saffron Walden; 04a; 295
1858 Q3 Birth - Frederick Wedlock (mmn: Smith); Saffron Walden; 04a; 313
1878 Q4 Marriage - Frederick Wedlock & Sarah Smith; Bishop Stortford; 03a; 415
1928 Q4 Death - Sarah Wedlock; age 75 (born c1853); Bishop Stortford; 03a; 760
1939 Q1 Death - Frederick Wedlock; age 80 (born c1859); Bishop Stortford; 03a; 1289
1879 Q4 Birth - Charles Henry Wedlock (mmn: Wilson); Bishop Stortford; 03a; 347
1882 Q1 Birth - George Alfred Wedlock (mmn: Wilson); Bishop Stortford; 03a; 392
1884 Q1 Birth - Clara Ada Wedlock (mmn: Wilson); Bishop Stortford; 03a; 421
1886 Q2 Birth - Emily Louisa Wedlock (mmn: Wilson); Bishop Stortford; 03a; 457
1888 Q2 Birth - William Wilson Wedlock (mmn: Wilson); Bishop Stortford; 03a; 463
1893 Q3 Birth - Annie Eleanor Wedlock (mmn: Wilson); Bishop Stortford; 03a; 509
1896 Q3 Birth - Sarah Wedlock (mmn: Wilson); Bishop Stortford; 03a; 533
Baptism:
name: Frederick Wedlock
baptised: 10 Oct 1858; St Mary the Virgin, Saffron Walden
father: Henry, labourer
mother: Rebecca
abode: Saffron Walden
Marriage:
married: 17 Oct 1878; St Mary the Virgin, Stanstead Montfitchet; banns
groom: Frederick Wedlock; fa; bach; bootmaker; Stanstead
bride: Sarah Wilson; fa; spin; -; Croydon?
grooms father: Henry Wedlock, labourer
brides father: Simon Wilson (dec)
witnesses: Martin Wedlock, Rose Wisbey
Newspapers:
Chelmsford Chronicle
05 Apr 1907
Marriages
Marriage of Miss Wedlock
The wedding took place at St Michael's Church, on Saturday, of Miss Clara Ada Wedlock (eldest daughter of Mr F Wedlock, of Bishop Stortford, and niece of Police Inspector Wedlock, of Harlow) with Mr George Maskell, of Gilston. There were many presents.
Essex Newsman
27 Jun 1908
Marriages
Mr G A Wedlock and Miss M E Harris
The wedding of Mr George Alfred Wedlock, second son of Mr F Wedlock, of Bishop Stortford, and nephew of Police Inspector Wedlock, of Harlow, to Miss Mary E Harris, daughter of Mr Francis Harris, of Thorley, was solemised at Thorley Church by Canon Procter, assisted by the Rev J E I Procter.
Chelmsford Chronicle
14 Dec 1917
Personal War Notes
Mr F Wedlock, of Hadham Road, Bishop Stortford, has been officially informed that his youngest son, Pte Walter Wedlock, Herts Regt, has been invalided to an Essex hospital, suffering from illness contracted in the trenches.
Censuses:
1861 Audley End
Frederick with parents Henry and Rebecca.
Ref RG09; Piece 1122; Folio 71; Page 35;
https://www.familysearch.org/ark:/61903/1:1:M7CD-53F1861 Widdington
Sarah with father Simon and stepmother(?) Emma.
Ref RG09; Piece 1120; Folio 139; Page 19;
https://www.familysearch.org/ark:/61903/1:1:M7CC-PHN1871 Stansted
Frederick with parents Henry and Rebecca.
Ref RG10; Piece 1354; Folio 124; Page 4;
https://www.familysearch.org/ark:/61903/1:1:VF66-MMK1871 Widdington
Probably Sarah, servant in Smith household.
Ref RG10; Piece 1707; Folio 141; Page 25;
https://www.familysearch.org/ark:/61903/1:1:VFNS-HCC1881 Bishop Stortford
Frederick and Sarah
Ref RG11; Piece 1406; Folio 102; Page 4;
https://www.familysearch.org/ark:/61903/1:1:Q27Z-K4VB1891 Bishop Stortford
Frederick and Sarah
Ref RG12; Piece 1098; Folio 58; Page 29;
https://www.familysearch.org/ark:/61903/1:1:W8MN-WPZ1901 Bishop Stortford
Frederick and Sarah
Ref RG13; Piece 1289; Folio 92; Page 4;
https://www.familysearch.org/ark:/61903/1:1:XS4Z-JRW1911 Bishop Stortford
Frederick and Sarah
https://www.familysearch.org/ark:/61903/1:1:X72B-Y5C