 The satirist John Wolcot under his pseudonym of "Peter Pindar", wrote an 'Instructive epistle' to Perring, satirically proposing an 'Address of Thanks' to Prime Minister Henry Addington for his 'Great and Upright Conduct when Prime Minister'.A banker by trade, Perring headed the firm of John Perring, Shaw, Barber & Co. Perring's bank issued bonds for the South American land speculator Gregor MacGregor.The suspension of payments by Perring's bank in the subsequent Panic of 1825, and its failure to satisfy creditors in the panic led Perring to lose his estates.