pcwardlaw,
I read Michael Halleran's book and here is my review as posted on his Amazon link:
"The Better Angels of Our Nature is an incredible study of individual Masons acting on one of their most sacred tenets - charitable relief of a fellow brother in severe distress. What is astounding is the setting: the killing fields of the Civil War, for these Masons are enemies. One minute they are locked in brutal combat killing each another, the next they are displaying unequaled acts of kindness. What is the basis for their actions? Michael A. Halleran not only tells their stories, but he also explains their motivations. The answer comes down to a man keeping his promise, his Word, his obligation to the fraternity of Freemasonry regardless of his political allegiance to state or nation. These stories are verified by Halleran's in-depth research and cross-source referencing in a history detective passion for the truth. From life-saving battlefield examples to prisoner relief to protecting property, the soldiers of Freemasonry show through their actions what Halleran writes in his Afterword, "...that the fraternal bond transcended nationality."
If you're looking for another great book, but in the mystery thriller fiction category, look no farther than the bombshell
Crown of Serpents by yours truly! A page turner for Masons and non-Masons alike that is garnering excellent reviews by Brothers.
Crown of Serpents