Family tree Dortmans
The family tree Dortmans is given in various pages, from generation 1 to generation M with N=2k-1 persons in generation k (N=1,2,4,8,16 etc.). If available images are provided.
The number for each individual corresponds to its father and mother by a factor of 2, so e.g. nr. 128 has father nr 256 and mother nr 257 etc.
The table below gives the number of persons Ni identified per generation, along with data on age of death and start and end of the generation:
From the birth and death data some basic statistics have been assembled:
With increasing generation the number of unknown persons increases. To avoid long lists of unknowns successive unknowns have been neglected. E.g. when person nr 228 is not known, his father and mother nrs 456 and 457 are neglected etc.