Hello, As far as I know there is no 1890 Census of all of the residents of New Jersey. However, in 1890 there was a Federal census of Civil War veterans (and their widows) which may be helpful. I'm not sure if it is complete for Union County, but it is well worth checking. It often listed their units, dates of service, and wounds. Good luck! David Kane www.westfieldnj.com/firstfamilies