Will of Oliver Iveson or Janson, Yeoman of Eastby, Yorkshire 30 June 1658 PROB 11/277 

Will of William Janson, Gentleman of Darlington , Durham 12 July 1849 PROB 11/2096 

Will of William Janson of Pontefract , Yorkshire 16 January 1822 PROB 11/1652 

Will of Jane Janson, Widow of Darlington , Durham 07 December 1847 PROB 11/2066 

Will of Edmund Janson of Tottenham , Middlesex 27 November 1826 PROB 11/1718 

Will of Mary Janson, Widow of Stamford Hill , Middlesex 03 September 1823 PROB 11/1675 

Will of William Janson of Tottenham , Middlesex 24 May 1848 PROB 11/2075 

Will of Martha Janson, Widow of Camberwell , Surrey 09 May 1848 PROB 11/2075 

Will of Joseph Janson of Stoke Newington , Middlesex 22 May 1846 PROB 11/2036 

Will of Thomas Horne Janson of Hurst Pierpoint , Sussex 08 February 1847 PROB 11/2050