He also was the Hawk on the adventure serial The Sparrow and the Hawk .
With Fitzmaurice portraying team leader Blackhawk , the series premiered September 13 , 1950 and concluded a few months later on December 27 , 1950 .
Fitzmaurice also was the Hawk on the adventure serial The Sparrow and the Hawk .
With Fitzmaurice portraying team leader Blackhawk , the series premiered September 13 , 1950 and concluded a few months later on December 27 , 1950 .