GUIDELINES This site allows non-lexicographers to aid the specialists in elaborating the history of English words and names.
TEMPLATE (In edit mode, copy and paste the template; delete elements not included, write over necessary elements):
Tabletter: Berkshire. Johannes le Tabletter. OED seems not to have.  rcp 03/12
Tapster: Norfolk. Mabillam de Rudham tapstere. OED has only earlyier in 1000.  rcp 03/12
Taskere: 1344. Oxfordshire. Petrus le Taskere of churche. OED has earliest sixteenth century.  rcp 03/12
Teyghler: 1345. Lincolnshire. Johannem de Byrle de Sancto Botolpho teyghler. OED has only earlier example in 1300.  rcp 03/12
Teynturer: 1320. Huntingdonshire. Magister Willelmus le Teynturer ... Johannes filius Petri le Teynturer. Not in OED. 
Thakker: 1344. Nottinghamshire. Thomam le Thakker. OED has earliest 1450.  rcp
Thetcher: 1354. Kent. William Bruggeman, thetcher. OED has earliest c. 1450.  SJ 07/11
Threshere: 1344. Kent. cum Thoma le Threshere. OED has 1380.  rcp 03/12
Thwitel: 1346. Lincolnshire. de quodam cultello vocato thwytel precii duorum denariorum. . 1348. Yorkshire/Staffordshire. Extraxit quendam cultellum vocatum thwitel. OED has only earlier usage in 1326.  rcp
Tymbermongere: 1344. London. Roberto de Causton tymbermongere. Only OED reference is in 1275.  rcp
Tynkeler: 1345. Lincolnshire. Radulfum Tynkeler. OED has only earlier in 1175.  cp 03/12
Tourtemaker: 1354. London. Simon le Tourtemaker. OED has 1706 as earliest for 'tourte'.  SJ 07/11
Trashe: 1351. Lincolnshire. Willelmus Trashe. OED has earliest in 1360, 150 years before next earliest usage and regarded as suspect.  rcp 0212.
Trayour: 1319. Andream le Trayour. OED has earliest 1473. 
Treager: 1590. London. panni linei vocati treager. OED has earliest 1610.  rcp 04/12
Trenchour: 1347. de quodam cultello vocato trenchour. OED has earliest 1330, then 1400.  rcp
Trotter: 1345. London. Johannem Trottere messager. OED does not have in this sense until 1562.  rcp 03/12
Turkeys: 1530. London. unum anulum aureum cum uno lapide precioso vocato a turkeys in eodem anulo infixo. OED seemingly has no such meaning.  rcp 02/12
Tymberman: Willelmum le Tymberman. Suffolk. OED has earliest 1429, although "Timber" far earlier.