Old Blue Hen's Chickens

I am working on my outline of the documents included in George Solifelt's Union Civil War Pension File and found a saying with which I was not familiar.  The saying is "one of Old Blue Hen's chickens."  I searched and found several different references and meanings but I think the one that was meant in this case was that he was a fighter and loyal.  This is from a statement by George A Fogle(21 Nov 1900 in Ft Smith Ark) which was dictated to H F Hill and included in the Union pension application file of George Solifelt.

Source:  

George Solifelt(Pvt., Co. E, 20th PA Cav., Civil War), pension application no. 580,089,

certificate no. 950,395, Case Files of Approved Pension Applications, 1861-1934; Civil

War and Later Pension Files; Department of Veterans Affairs, Record Group 15; National

Archives, Washington, D.C. [He used the aliases George Sullivan & Theodore Sullivan both of which are noted the Pension Index Cards. He also served in C 2nd & H 126th PA Inf as well as C 1st PA Prov. Cav.]