in Cape Town) was an ensign (sergeant 1747–49, ensign 1749–54[1]) in the employ of the Dutch East India Company who headed an epic 1752 reconnaissance expedition lasting 8 months from 29 February to November, eastward from Cape Town as far as the present-day site of Butterworth.

The mandate of the expedition was to report on the tribes living along the route, the possibility of trade and on anything else that might be profitable to the Dutch East India Company.

His diary lists two sergeants, four corporals, a drummer and 30 soldiers, a wagonmaster Pieter Clement, a surgeon Jan Hendrik van Ellewe, a botanist, a blacksmith, a wainwright, 11 wagons, and a boat for crossing impassable rivers.

Under the ridge of a kloof, in a kind of cave in which one could shelter from wind and rain, we saw pictures of wild horses, baboons and people in various positions, painted on the rocks in red, white and black.

[4] Beutler married Anna Magdalena van den Heever on 4 January 1750 in Cape Town.