Like his daddy before him, Ben Zaitz knew he was going to grow up to be a cowman.
From the time.com
One boy's father was a cowman.
From the telegraph.co.uk
According to a display in the history center, Florida cowman Jacob Summerlin agreed to ship 600 herd of cattle each week to North Florida during the war.
From the orlandosentinel.com
Traffic had to stop and wait while the cowman, wobbling on his bike with a stick in hand, would have to round up the odd cow that tried to make a run for it.
From the guardian.co.uk
More examples
Cowboy: a hired hand who tends cattle and performs other duties on horseback
A cowman is a person who works specifically with cattle.
Cowman is an occupational surname originating in England, from cowman. A rare surname throughout the world today, Cowman is relatively more common in the midwestern United States.