Parson and Pilgrim

1857 Patent. '2339. To George John Parson, of Adelphi-terrace, Strand, Gentleman, and Thomas Pilgrim, Engineer, of Bow, both in the county of Middlesex, for the invention of "improvements in the mode of generating steam in the boilers of steam engines, and in raising the temperature of steam for other uses."'[1]
1858 Patent. '422. George John Parson, of Adelphi-terrace, Strand, Gentleman, and Thomas Pilgrim, Engineer, of Bow, both in the county of Middlesex, for an invention of "improvements in the mode of raising the temperature of steam generated in steam boilers, and in using the same for working steam engines." Dated 3rd March, 1858'[2]
Note: George John Parson was a Solicitor of the Patentee's Office, Adelphi-terrace, Strand.