I am currently researching my Tidy ancestors who first appear in Rudgwick, Sussex & Ewhurst, Surrey, at the end of the 17th Century and who then migrate north over the succeeding centuries to Wotton (Ockley), Leatherhead, Cobham & Epsom. Further branches ended up in Dorking & Mickleham (Surrey) plus London, Benington (Hertfordshire),Bexley Heath (Kent), Edinburgh (Scotland) & New Westminster & Surrey (British Columbia, Canada).
All details are listed on Genesreunited site.
Many of the Tidys were Blacksmiths or Farriers, and often married with others who had "horse" connections (e.g. Grooms, Coach Drivers, Horse Trainers, etc). Others evolved out of the Blacksmithing into modern jobs like plumbing, car mechanics, metal fabricating and even bicycle repairing!
Also researching the following names linked by marriage to Tidys:
Moore, Ledger and Foster (all in Cobham, Surrey in 19th Century)
Sweetingham and Grace (Warsash/Bursledon, Hampshire in 19th Century)
Jelly, Jelley, Gelley in Stoke next Guildford, Surrey (late 18th C)
Marks, Gardiner and Lipscomb all in Leatherhead, Surrey (early to mid 19th century)
Holt in Brixworth, Northamptonshire (late 19th & early 20th cent)
Westing, Matthias and Blackman(Epsom early to mid 20th century)
Brassington & Boon (London, early to mid 20th century)
Rooke (Grand Forks and Vancouver, British Columbia, Canada in early to mid 20th century, then into Washington State, USA)
I am very happy to share what information I have if anyone spots a connection.