It is not completely clear who the parents of Richard Dowrish are despite a great deal of direct evidence.
The Visitation of 1564 states he was a son of Thomas Dowrish by a daughter of Fulford;  the Visitation of 1620 says he was the son of Thomas Dowrish Jr. and that he had married a daughter of Fulford.  The 1620 version is clearly in error.
Circa 1500, Thomas Dowrish sued Thomas Coterell and Alice his wife stating he was the son and heir Richard Dowrish, and the grandson of Thomas Dowrish who had been married to Alice now wife of Thomas Coterell. This statement seemingly has to be taken as a fact as Alice would surely know if the Thomas was the grandson of her previous husband (whether she was the grandmother or not).
The 1483 IPM of Thomas who married Alice Stawell says his heir was a daughter Elizabeth with no mention of a son Richard. The same IPM specifically says he had two younger brothers, Richard and Walter. 
Chancery suit Slugge v Dowrish C 1/355/98 states that "Thomas Douryssh then died, and the lands descended to his son and heir Thomas Douryssh the younger, and then after the younger Thomas’ death to his brother and heir Richard Douryssh"
There is no way to resolve these conflicting statements, which make Richard both the son and the brother of the Thomas Dowrish who married Alice Stawell.
To be continued...
Marriages and Children
Richard is thought to have married twice (to a Miss Fulford and to a Miss Catsby).
Married:2nd - Joan. She married 2nd ??? Puntyngton. She died 20 July 1512 and an IPM was taken. This IPM names her first husband Richard Dowrish and reiterates the 1496 fine.
Children of Richard Dowrish by first wife:
Thomas Dowrish. Son and heir.
Children of Richard Dowrish by Joan:
Peter Dowrish. Named in fine of 1496. Died without issue.
Isabel Dowrish. Named in fine of 1496. Died without issue.
Alice Dowrish. Named in fine of 1496. Died without issue.
Katherine Dowrish. Named in fine of 1496. She married John Syndall. When Peter, Isabel and Alice all died without issue she all of the property named in the 1496 fine.
On 5 June 1496, Richard Dowrish settle the majority of his property on himself and wife Joan, with successive remainders to son Peter, daughter Isabel, daughter Alice, and daughter Katherine. The result of this was to essentially disherit his oldest son Thomas by his first marriage. Thomas is then found in a number of chancery suits attempting to recover his land. From these, we learn that Peter, Isabel and Alice all died without issue and that Katherine inherited all.
Date: AFT 1512
Feet of Fine CP 25/1/46/93, number 16
Settlement by Richard Dowrish on children by second wife, 5 June 1496.
Date: One week from Holy Trinity, 11 Henry VII [5 June 1496].
Parties: William Sh[.p?]ton' andRobert Torner, demandants, and Richard Doweryssh' and Nicholas Snape, impedients.
Property: The manor of Stocley Englyssh' and 21 messuages, 693 acres of land, 46 acres of meadow, 40 acres of wood, 62 acres of furze and heath and 14 shillings of rent and a moiety of 1 messuage and of 1 mill in Credyhelyon', Upton' Helyon', Wolvedon', Hatherlegh', Langber, Thornworthy, Ledebrugg', Pyddeslegh', Aller,Henstilhys, Yollond', Hollond' [deleted?], Holford', Bynholelypsion, Aysshberton', Bowtporte, Dowryssh', Lawarrodlegh', Plymmouth', Plymton' Prior and Plymton' Comitis.
Action: Plea of warranty of charter.
Agreement: Richard has acknowledged the manor and tenements to be the right of Robert, as those which Robert and William have of his gift.
For this: William and Robert have granted to Nicholas the manor and tenements and have rendered them to him in the court, to hold to Nicholas for the term of 1 month, and after the term the manor and tenements shall remain to Richard and Joan, his wife, to hold of the chief lords for the lives of Richard and Joan, and after their decease the manor and tenements shall remain to Peter Doweryssh', son of the aforesaid Richard, and the heirs of his body, to hold of the chief lords for ever. In default of such heirs, successive remainders (1) to Isabel, Alice and Katherine, sisters of the aforesaid Peter, and the heirs of their bodies and (2) to William Stapylhyll' and Walter York and the heirs of William Stapylhyll'.
Standardised forms of names. (These are tentative suggestions, intended only as a finding aid.)
Persons: William Shipton, Robert Turner, Richard Dowrich, Nicholas Snape, Joan Dowrich, Peter Dowrich, Isabel Dowrich, Alice Dowrich, Katherine Dowrich, William Staplehill, Walter York
Places: Stockleigh English, Creedy (in Upton Hellions), Upton Hellions, Woolladon (in Meeth), Hatherleigh, Langabear (in Hatherleigh), Thornworthy (in Lynton), Lydbridge (in Hatherleigh), Pidsley, Aller, Henstill, Yelland (all four in Sandford),Holland (in Plympton St Mary), Halford, 'Bynholelypsion', Ashburton, Boutport (in Barnstaple), Dowrich (in Sandford), 'Lawarrodlegh, Plymouth, Plympton Prior, Plympton St Maurice
2. Henry Webber, clerk, dean of the Cathedral church of St Peter, Exeter premises: all 1.'s tenement and garden in the city of Exeter lying in the parishes of St Martin and St Stephen, which 1. recently had by gift from Thomas Dourissh, Robert Gyffard, William Martyn clerk, John Oryng, and Richard Dourissh
Witnesses: John Denys of Orlegh, John Orchard, Robert Wylsford, John More, Nicholas Pyne