John Manton died in 1834. In 1833 William Hudson became a partner and until his death ( early 1840`s ) the firm became known as Manton and Hudson though always employing the wording John Manton and Son on their guns. When John died George Henry Manton ( Son of John ) took his nephew Gildon Manton into the business. In march 1840 the firm were describing themselves as John Manton and Co.
George and Henry did not get on together with the business one wanted to keep it how it was and one wanted to modernise so at this time fewer of the high class John Manton and Son guns were made with individual serial numbers. Now the locks were just marked Manton and as a general rule were of the back action type, barrels were made in Birmingham and proved at the Birmingham proof house. The weapons sold were serviceable double barrel sporting guns and were not comparable in quality to John Manton's, many of these guns were exported to America.
In 1851 John Manton and Son exhibited in the great exhibition of 1851 at the crystal palace.
George Henry died in 1854 the management of the gun business passed into Gildons hands. In 1856 Gilden became ill and died after going out hunting and getting wet through.
Now Mrs Gildon Manton was left with the business on her hands with no male member of the family left to help her. By 1862 very few fine guns were being made only around twelve a year, shortly after this time probably 1868 the firm was changed to John Manton Son and Coe, Coe being the foreman of the business who now became a partner, gradually Charles Coe took over more and more of the business Mrs Manton eventually sold it to him he however did not have the ability to run it properly and in 1878 it went into voluntary liquidation.
No 6 Dover street was demolished in the 1890`s to make way for the Dover street tube station of the Piccadilly line. John Manton and Son Ltd is now a business again making high end guns.
