I have lots information on the Gallarno family. I have been researching the line for many years. Your grandfather, Ensign's grandmother, Nancy O'Roke Gallarno was the younger sister of my 2nd ggfather, Henry O'Roke. I have information on Mack and Dora Gallarno as well.
You and I are 4th cousins.
Hoping to hearing from you. You can find me on ancestry.com under ErinGalyean118 or findagrave under EM.