[Hallicrafters] Historical Assistance Requested

[Duane Fischer, W8DBF]

Hello All, 	
	
If you can provide me with the following information it would be very much
appreciated. Thank you very much for your time and assistance.   	
	
1. What year did William Halligan, Sr. change his call sign from W9WZE to W9AC? 
	
	
2. What year did William Halligan, Sr. change his call sign from W9AC to W4AK? 	
	
3. At the time of his death in 1992, which call sign was he using? 	
	
4. Was William Halligan, Jr. licensed as an Amateur Radio operator? if so, when
and what was his call sign?   	
	
5. Checking the Boston, MA vital statistics there are a number of Halligans who
passed away from 1899-1912. What was the name of William J. Halligan's
grandfather and what year did he die? 	
	
6. Same question, but for the father of William J. Halligan? 	
	
7. What year did William Halligan, Sr. wife Katie die?	
	
Duane Fischer, W8DBF	
dfischer at usol.com