The following is list of Church and Cemetery records that was compiled by Jane Devlin, on her website:
DUNHAM – WILCOX – TROTT – KIRK
After Jane’s passing in 2014, the members of her family were able to gain access to the site and intend to keep it running.
Besides the Union County there are indexes for Atlantic, Bergen, Burlington, Camden, Cape May, Cumberland, Essex, Gloucester, Hunterdon, Middlesex, Morris, Passaic, and Sussex in her New Jersey Index. Be sure to check out the home page, she has many other states with a variety indexes.

CHURCHES:
Elizabeth, Union Co., NJ, Lamington Church Membership to 1890
Elizabeth, Union Co., NJ, Westminster Presbyterian Church – Officers & Members to 1876
Elizabeth, Union Co., NJ, First Presbyterian Church Membership List – 1868
Westfield, Union Co., NJ, Presbyterian Baptisms, 1759-1850
Westfield, Union Co., NJ, Presbyterian Marriages, 1759-1849
Westfield, Union Co., NJ, Presbyterian Church Membership
CEMETERIES – BURIAL GROUNDS:
Elizabeth, Union Co., NJ, First Presbyterian Church Burying Ground, Part I, Part II, & Part III
Elizabeth, Union Co., NJ, St. John’s Burial Ground
Westfield, Union Co., NJ, Presbyterian Cemetery, A-M Surnames
Westfield, Union Co., NJ, Presbyterian Cemetery, N-Y Surnames