The references extracted are typed as I found originally listed in the various indexes. The Chancery Proceedings reference numbers are the ones needed to order the original documents when at the then Public Reference Office (now The National Archives or TNA), Kew. The last entry's reference will be that used at the Buckinghamshire Record Office. The Somerset Subsidy Rolls ones I'm uncertain, but presumably these can be found in the Somerset Record Office in Taunton.
I haven't seen the contents of these files.
William GANDER and Anne GANDER his wife, Plaintiffs. Defendants: Richard Cason and Joane Cason his wife. Subject: messuages (not specified). Document type: answer only. 1653 - Chancery Proceedings before 1714 Collins Div. Bundle 15 No. 61 C6/15/61
Henry PITTARD, plaintiff.Defendants: John GANDER and Mary GANDER his wife. Subject: property in Kingsbury Episcopi, Somerset. Document type: bill, answer, two schedules. 1682 Somerset Chancery Proceedings before 1714 Collins Div. Bundle 243 No. 63 C6/243/63
Tho. GANDER 1670/1 Somerset Subsidy Rolls - Ffiddington S.99 ?
Thos. GANDER 1670/1 Somerset Subsidy Rolls - Spaxton S.103 ?
Thos. GANDER 1673/4 Somerset Subsidy Rolls Bundle 343 - Stocursey S.547 ?
(?)Will. GANDER 1674/4 Somerset Subsidy Rolls Bundle 343 - South Cadbury S.565 ?
(?)Water (sic) GANDER 1670/1 Somerset Subsidy Rolls - Gregory Stokes S.266
William GANDER 'of Colbrook, Buckinghamshire, taylor' Proceedings in the Court of Requests: (James I (1603-1625) - 'his wife Jane (MACHEN)' REQ2/300/26
( also at The National Archives)
ELLYS v STANDISHE, BRINGHURST, GANDER, PAGE, CANON and others: Middlesex. Ref: STAC 8/128/19