I am looking for descendents of martha J. Coston (Scott) who married Benjamin Franklin Coston in the 1830's or 40's. Out of 4 children, 2 survived (harry and William). this family originated in Philadelphia PA and is of French descent. After the death of Benjamin, Martha invented signal flares on contract by the US Navy during the Civil War. Please contact me at smb611@aol.com with any information. Thank you.