Hourglass Chart
Johannes Jacobus Kramers

Petronella Boot ‎(I78538)‎ Birth 31 March 1917 35 36 -- Den Haag Death about 2001 ‏(Age 83)‏ -- Noordwijk Loading... Johanna Kramers ‎(I78540)‎ Birth 6 June 1880 38 38 -- Leiden Death 18 February 1931 ‏(Age 50)‏ -- Rotterdam Loading... Hendrik Jan Kramers ‎(I78541)‎ Birth about 1842 -- Leiden Death 26 November 1910 ‏(Age 68)‏ -- Leiden Loading... Johannes Jacobus Kramers ‎(I78545)‎ Birth -- Leiden Loading...