H. L. Hastings wrote many influential tracts and booklets. Some of them specifically supported Conditional Immortality as advocated by Storrs. A tract by Hastings gave its title to Barbour's Three Worlds book.
Pre-press edit has been suspended while unexpected additional research material is examined. I'll keep you updated. While you wait, enjoy this scan of part of the documentation. This is one of the small books by E. P. Woodward, one of the delagates to the Worcester Conference of February 1872. Barbour, L. T. Cunningham and Albert Simpson debated the date for Christ's return.