Hi
Birmingham was a city so you have to expect more than one of people with the same name. The documents are for a much richer Richard Fowler and his company, probably the man aged 58 on the 1851 census at Gravelly Hill Aston who was aged 58, a land agent and farmer employing 5 men and born Aston (Erdington on the 1861 census). His son Robert, still living at home, was a auctioneer. There were 5 servants in the household.
e.g.
Richard Fowler and Sons, surveyors and estate agents of Birmingham
'Diary of Richard Fowler, jun., of Gravelly Hill House, Erdington. MS 20/352 A 1813
Deed of partnership for carrying on the malting business between Richard Fowler, the younger, of Erdington and Charles Machin, the younger, of Erdington, 1833. Also Messrs Fowler and Machin's bills and receipts for malt. MS 20/352 B 1833-1866
Deed of partition of the residuary estate of the late Mr. Richard Fowler. MS 20/353 1871
Papers concerning the estates of Richard and Sarah Fowler; including the probate copy of the will of Richard Fowler of Nechells Park House 1875, an office copy of the order for partition of the tithe rent - charges for Erdington, Bordesley and Little Bromwich between Frances Fowler and Josiah Yeomans Robins 1875. and the probate copy of the will of Mrs. Sarah Fowler of Weeford Lodge, Erdington. 1904. MS 20/354 1875-1904'
There seems no connection with Richard Fowler the shoemaker who died in 1845.
RICHARD FOWLER and ELIZABETH JAMES
Marriage: 23 APR 1778 Aston Juxta Birmingham, Warwick
Children baptised in Aston - Mary 1779, Elizabeth 1780, Richard 1791, William 1795 and Ann 1799
Regards
Valda