We lived in Holland five years in the 80's and spent considerable time in Germany. My aunt had told me she remembered her grandfather and his brothers speaking "Dutch".I found they may have been speaking "Deutch" (German) as our friends in Holland said no name such as this could come from there.
After asking a few Germans, they mostly agreed that the origianl name could have been "Bachler" (two dots over the "a"), or Bechler (more two dots),often changed to "Bekler" or "Beckler" in English. Both are very common German names of old.
Re: coat of arms, this seemed to be a "common" name rather than one of the upper class which would require a coat of arms.I have never found any sort of authentic coat under this name, but the change in spelling may account for that.