The Suffolk schoolteacher and historian Vincent Burrough Redstone (1853-1941) produced several books of enduring value, such as The Ship-Money Returns for the County of Suffolk, 1639-40 (https://archive.org/details/cu31924030265544/page/n5). Much of his extensive unpublished work is in the Redstone Collection at the Suffolk Record Office (SRO) in Ipswich, catalogued as HD11/1 (accessions 4291 and 10,636). This includes a transcript (HD11/1 : 4921/10.14) listing the taxpayers in all but two of the parishes in Blything Hundred who were assessed in 1642 (a few months before the Civil War) for a grant to fund the "necessary defence and great affaires of the Kingdomes of England and Ireland and for the payment of debts undertaken by the Parliament". Frostenden and Wrentham, the two parishes omitted by Redstone, are also missing from his ship-money book. However, transcripts of their May 1642 assessments are now available at https://www.rootschat.com/forum/index.php?topic=804448.0, along with information about the original parchment roll (E1/25), which, despite its eastern provenance, is now held by the SRO in Bury St Edmunds. The National Archives has similar rolls from Aldeburgh, Ipswich and the hundreds of Blackbourn, Samford, Thedwastre and Wangford. I am not aware of any transcripts of these.