A number of graphs are associated with P. J. Owens.
The 76-node Owens graph (Owens 1980) provides the smallest known example of a polyhedral quintic
nonhamiltonian graph. It was constructed by inserting copies of the skeleton
of the gyroelongated pentagonal pyramid 
at the 10 of the 11 vertices of
the Herschel graph.
The 78-node Owens graph (Owens 1983) is a bicubic nonhamiltonian graph which at the time was the smallest such graph known. It
was constructed by various operations on the generalized
Petersen graph 
.
These former of these graphs is implemented in the Wolfram Language as GraphData["OwensGraph76"].
