i have found 10 sources (see profile for detail) for Joseph Charles Lockwood that cite everything from birth, parents, siblings, children, marriage, christening to residences & dates of death of wife & children. However, I can't find anything for him.
The last record for him has him living in a boarding house in Trenton, NJ in 1920 per the US Census (I don't know why this is because he had six children living in Trenton in 1920). Anyway, I can find nothing about his date of death or where he is buried (his wife, Elizabeth "Lizzie" Grinrod Lockwood, & several children are buried in Greenwood Cemetery in Trenton, NJ).
Any help or hints are greatly appreciated.