Ms McAlpine,

Do you know the year he died ? There were plenty of people "dying in war in Texas" over a long period of time . Do you know if it was during the War Between the States? It may have been during another conflict with the Indians or the Mexicans. If you can give me an era I think we might be able to help.
Best Regards, Craig Morin
P.S. By the way, are you related to the McAlpines in OKla City? Chief McAlpine was Fire Chief for many years there. ma