What is still open

The primary checks nobody has done. Each one could move a grade.

Page 167 of Peel's 1915 edition of the Seconde Parte of a Register, listing Warwickshire clergy in 1586, including John Frith of Grafton, an old priest and unsound in religion. — Peel, The Seconde Parte of a Register, 1915, page 167: the 1586 Puritan survey entry for Grafton, John Frith, an old priest and unsound in religion.Albert Peel (editor), 1915. Internet Archive. Public domain.

The full 1606 Act Book list. Kent History and Library Centre U269/Q22, pages 36 to 39. Who else was cited with Susanna on 5 May 1606? Whether Reynolds or Cawdrey names appear has not been checked.
The Davies note at Corpus Christi. The exact wording and shelfmark (usually cited as CCC MS 309, fol. 22; MS 304 is the Jackson notebook) have not been confirmed against the manuscript.
Robert Arden’s will preamble, verbatim. Lee says it marks “an observant Catholic”. The actual words were not retrieved. Agnes Arden’s will of 1578/79 would show how a Wilmcote Arden widow expressed faith under Elizabeth.
“Fear of process for debt” in other counties’ 1592 returns. Whether the phrase was a conventional excuse elsewhere is the key test of the 1592 certificate. Not resolved.
A refereed response to Steggle. None was found in Shakespeare Quarterly, Shakespeare Survey, Notes and Queries or the TLS between mid-2025 and October 2026. Absence of a rebuttal found is not proof none exists.
The 1616 St Omer edition. A facsimile of Saint Peter’s Complaint (ESTC S117660) would show where “Maister W.S.” actually stands: title page, or epistle heading only.
The Reynolds imprisonment. The letter of 2 October 1613 is cited through Pearce and has not been seen. Thomas Combe’s later recusancy listings (1621, 1641, per Pearce) are checkable.
The March 1592 first certificate. Widely reported; its wording, and whether John appears on it with or without the debt note, was not located.