The son of John Cator the Elder, a Herefordshire timber merchant and Quaker, Cator joined the family business which had relocated to a new London base at Mould Strand Wharf in Southwark, and sought to capitalise on the growth of the capital by investing in property, mainly in south-east London and Kent. He married Mary Collinson in 1753. In 1778, Fanny Burney wrote: At one time Cator negotiated lending money to the Prince Regent and his brothers but withdrew in case it was seen by lawyers as treasonable as repayment details turned on the death of the ailing King. He was MP for Wallingford from 1772 to 1780. Following his election for Ipswich in 1784, his rival Charles Crickitt took out a successful petition against him accusing him of bribery. He was then elected for Stockbridge from 1790 to 1793. He was appointed High Sheriff of Kent for 1780–81.
Beckenham
Cator's first land purchase in Beckenham/Lewisham was at Stump's Hill in 1757, where he built a house between 1760 and 1762 on part of what was Foxgrove Manor lands. His father-in-law visited in September 1762, commenting: In 1773, he became Lord of the Manor of Beckenham, having purchased the land from Lord Bolingbroke. Bolingbroke had previously exchanged the old manor house for Woolseys Farm with the Burrells. Cator was established at Stumps Hill and whether the house of 1760 was altered is unknown but it was eventually altered to a more Palladian-style mansion with the epithet 'Beckenham Place', Beckenham Place, much admired by Dr Samuel Johnson. The purchase from Bolingbroke was fraught with problems as Bolingbroke had previously leased the manor lands to a Mrs. Hare and court cases went on until 1780. After Cator acquired full control of the Beckenham Manor lands he exchanged property with the Burrells of Kelsey and Langley so that he had a contiguous estate north of Beckenham village and the Burrells under Peter Burrell/Lord Gwydyr had most of the land south of the village after 1793. Cator's land dealings, money lending and business affairs will perhaps never be fully understood. He was a shareholder in the East India Company and some of his brothers worked for the Company. Cator Park is named after John Cator.
Blackheath
Around 1783, slightly closer to central London at Blackheath, Cator bought the Wricklemarsh mansion and its 250-acre estate for a bargain £22,250. The Palladian mansion was gradually demolished from 1787 onwards and Cator began to break up the estate into small packages of land to be individually developed. Among the earliest commissions was one for architect Michael Searles to design a 14-house crescent, "The Paragon", on the south side of the Heath. Some of its colonnades are said to incorporate pillars used in Page's mansion.
The Cator estates
Cator died in London in 1806 at his Adelphi apartment and was buried in the churchyard of St George's Church, Beckenham. At the time of his death he had property in Beckenham, Croydon, Addington, Leigh, Chiddingstone, Waltham Forest, Chingford and a small amount in Hereford which had been his father's. His only child a daughter Maria had died in infancy so he had no direct heir. His estates were inherited by his nephew John Barwell Cator, who "with a young man's flair, exploited the Blackheath estate with style and profit," though it was not until the mid 1820s that building started in earnest. J. Barwell Cator had purchased estates in Woodbastwick in Norfolk, and it later fell to other Cators – his younger brother Peter Cator and son Albemarle Cator – to expand the developments of Beckenham and Blackheath to take advantage of the growth of the railway network during the mid 19th century. John Cator had intended the Beckenham Estates to remain intact for the family but a Private Act of Parliament 1825 permitted J. Barwell Cator and other trustees of the estate to sell or lease property with the intention of replacing sales with other purchases so Woodbastwick expanded, and the family under Albemarle Cator also acquired property in Trewsbury in Gloucestershire. The upmarket Blackheath Park neighbourhood south-east of the heath itself bears alternate name "the Cator Estate". John Barwell Cator's descendant, Elizabeth Cator was the mother ofMichael Bowes-Lyon, 17th Earl of Strathmore and Kinghorne.
