I am looking for information on my Grand-Uncle

My Grand-Uncle Alonzo Vanderhorst born around 1881 or 1884 relocated from Charleston SC to Brockton, Massachusetts sometime around 1910. The last bit of records that I found on him was World War II registration form for 1942. I also found him in the city directory for Brockton Mass in 1942. I sent money for a search for a death certificate 2 weeks ago, and have recieved no response. Anyone living in Brockton or maybe Boston can supply me with some answers to what ever happened to Alonzo Vanderhorst. I would be very much appreciative. Thank you .

Clyde Vanderhorst