Career
However the medal was tied with Norwegian Ole Ostmo. He also competed in the 1920, 1924, and 1936 Olympic Games, for a total of five Olympic appearances. The document "Five Or More Appearances in the Olympics, 1992 Revision" by the well respected Olympic historians Lennart Dahllöf, Wolf Lyberg, and Doctor Bill Mallon claims that Van Asbroeck appeared in six Olympic Games, citing "1906-1908, 20-28, 36", but this appears to be in error.
Presumably the 1906 is a typo for 1900, since he did compete in 1906.
The 1906 Intercalated Games do not count as "official" Olympics, while shooting was not part of the Olympic programme in 1904 or 1928.