During the great revolt from loyalty, the usurpation of Oliver Cromwell, the town of Lowestoft exerted its utmost efforts in support of the Royal cause, and consequently was thereby exposed to the greatest dangers and inconveniences; particularly in opposing and counteracting the violent proceedings of Cromwell and the Parliament, respecting the association of the Eastern Counties. Among the many misfortunes and inconveniences which the town was subject to in consequence of this rebellion, may be reckoned, its being obliged, in 1642, to join with Ipswich, Orford, Dunwich, Aldborough, Southwold, Colchester, Maldon, Harwich, Woodbridge, Walberswick, Gorleston, Manningtree, and Barnham, in furnishing a ship of 800 tons burthen, and 260 men, with double tackle, ammunition, wages and stores.

In 1642, when Cromwell was advanced to the rank of Colonel, and also appointed a Commissioner in the order for settling the militia, the eastern counties entered into an association, and agreed to support the Parliament against all its opposers.

The king, in order to defeat the designs of this association, which the Parliament had confirmed, issued out his commission of array.

Cromwell having by his great skill and management, raised a regiment of a thousand horse, obstructed, with the most indefatigable industry, the levies that were raising for the service of the King in Cambridgeshire, Essex, Suffolk and Norfolk, and hearing that several gentlemen of eminent rank were assembled at Lowestoft, among whom were Sir John Pettus, Sir Edward Barker, etc., with a design of forming a counter association in this county, and also in Norfolk, for the service of his Majesty, he marched with the utmost expedition to Lowestoft, and surprised them the day before that many others were to have met and joined them; and had not their designs been frustrated by this unexpected surprise, probably all the eastern counties would have been rescued out of the hands of Oliver Cromwell and his adherents.

The inhabitants of Lowestoft, as soon as they were informed of Oliver’s approach were exceedingly alarmed, and exerted their utmost efforts to put the town in a state of defence, and to dispute his entrance; and in order to this purpose, two pieces of cannon were placed at the south end of the town, and two at the head of Rant’s score, but one of the principal inhabitants (Thomas Mighells, merchant, who died in 1695) foreseeing the improbability of a design of this nature being attended with success, and also representing the extreme rashness of attempting it with so inferior a force, as well as the great damage which the town would probably sustain from an unsuccessful opposition, so far prevailed with the inhabitants and members of the association that they declined the resolution of opposing Oliver’s entrance into the town. The sum of twenty pounds was paid by the City of Norwich to Sergeant-Major Sherwood’s volunteers for their service at Lowestoft, where a design was discovered of a counter-association on the King’s behalf, made by Sir John Pettus, Sir Edward Barker, and other loyal gentlemen; and was carried so far, that Colonel Cromwell was in danger of his person, and was very near being taken, had not these volunteers rescued him, by sending for one hundred soldiers from Norwich and also one hundred more afterwards.

In consequence of pacific measures being adopted, Cromwell entered the town without any opposition, and fixed his head quarters at the Swan Inn. While he was here he sent for Sir John Pettus, who accordingly waited on him. After that Oliver had interrogated him very closely respecting the designs of the counter-association, requested that he would inform him to which party it was that he intended to engage himself during these disputes, Sir John, without any duplicity or reservation, declared that he should act for the King. Oliver, so far from shewing the least resentment against Sir John for his ingenuous declaration, highly applauded his frankness and sincerity, and dismissed him with assuring him, that he sincerely wished every man in the kingdom would be as open and sincere in declaring his real sentiments and intentions.

Cromwell by the surrender of the town became possessed of a considerable quantity of ammunition, saddles, pistols, and several pieces of cannon; as many as were sufficient for arming and supplying with necessaries a considerable body of forces.

This unfortunate event exceedingly discouraged the King’s friends of Norfolk and Suffolk; and it appeared afterwards, that, however artfully Cromwell might conceal his resentment on this occasion, yet, he was far from being sincere, or that those resentments were wholly suppressed by the surrender of the town. For he not only declared that had the inhabitants and those concerned in the counter association attempted to fire upon him when he entered the town, he would have put them all to the sword, but also suffered his soldiers, in a great measure, to plunder the town and live at free quarters. The tradesmen in Lowestoft suffered the greatest injuries by Oliver’s soldiers plundering them of their stocks-in-trade, as far as they were useful to the army, without making them any recompense. This misfortune, which happened in the year 1643, together with the terrible fire in 1644, which consumed £10,000 worth of property; the Dutch wars, which followed soon after, and the tedious and expensive law-suit with Yarmouth concerning the herring fishery, almost ruined the town.

In the year 1663 a petition was presented by the town of Lowestoft to the Duke of Albemarle, requesting that the four pieces of cannon then in the town might remain there, in order to guard the coast against any attacks of the enemy.

In consequence of this petition, the four pieces of cannon were permitted by Government to remain at Lowestoft, for the defence of the town; accordingly the inhabitants at their own expense, mounted the same on a platform, and also purchased ammunition necessary for their own security. But this platform being afterwards destroyed by the sea, the town was obliged to present a petition to the Earl of Suffolk, Lord Lieutenant of the County, requesting assistance, in order to enable them to erect another platform which petition was granted.