All changes to tower
| Date | Change | Source |
|---|---|---|
| 4 Dec 2023 | Overhaul added | Bowell's ledger 1921 via Neal Dodge |
| 11 Dec 2022 | Overhaul added | Essex Standard - Friday 24 April 1840 via Neal Dodge |
| 13 Aug 2022 | Fr1: layout amended | Ranald Clouston papers 1989 via Neal Dodge |
| 27 Jan 2017 | frame: truss,layout added | Philip Denton via e-mail |
| 21 Jan 2017 | 1-8: turning,frameid added; frame info added | Philip Denton via 00011971 |
| 18 Feb 2012 | Tue PN is only between October and March | Don Mills (Tower Capt) via e-mail |
| 22 Sep 2004 | Slight change to dedication to match Crockford entry | Graham Nabb check via e-mail |