Heijnen > Heinen end 19th century
My grandfather, Col. Ary Heinen, ret., currently living in North Saanich, BC, Canada has traced our family name back to mid 16th century Spakenburg, the Netherlands (currently municipality of Bunschoten-Spakenburg).
There lived a family of fishermen and farmers by the name of Kleijnman > Klijnman > Heijnen. The archfather, if I may call him that, was Hendrik Kleijnman. Whether the change of the name was due to illegible handwriting, or the meaning changed (Kleijnman is middle-dutch for little man; Heijnen could mean Heijn's son, Heijn being short for Hendrik or Henri), is unknown to me, but my grandfather is more informed than I am.
The change of name in my family from Heijnen to Heinen, however, was done by my grandfather's grandfather, Wouter Heijnen, who at birth registered his son, my great-grandfather, as Harm Heinen.