What is the reason some people put a lone star on the front of their house?
Answers:
Perhaps they are Texans :o)
Other answers:
if its blue on a white backing w/ red border it is to signify that a soldier live there and is off in service .... old WW2 custom
if its blue on a white backing w/ red border it is to signify that a soldier live there and is off in service .... old WW2 custom
If it is a simple blue star....the people who live there have had a background check from the local elementary school and it is a safe house to go to if you have problems while walking home/in the neighborhood...
I think the sign you are talking about means that that person has a family member in the military.