John Alexander, born in 1897 and passed away in 1982, was buried at Kensico Cemetery in Valhalla, Westchester County, New York, USA. This information is confirmed by his memorial page on Find a Grave, which states his birth in Newport, Kentucky, and death in New York, New York. The burial location is consistent across multiple sources, including a Portuguese version of Find a Grave. There is no indication that he was buried in Alexandria or any other location. For more information, you can visit his memorial page at Find a Grave.