I can't get to my old programs but here's an early Limited Sportsman driver roster from memory:
(1) Jerry Cecil
1M Dennis Moomjean
(2) Dave McCurley
(3) Roy Pruett
(4) Art Lacost
4M Vern Whillhoite
(5) Phil Mingus
(6) Roger Van Dusen
(7) Buster Tara
7M George Steitz
8M Rod Poor
(9) Vic Irvan
(10) Tim Williamson
(11) Bob Hedrick
(12) Bill Orr
(13) "Okie" Art Eaton (winner of first EVER main at Watsonville)
(14) Bill White
(15) Allen Roqet
16M Jerry Holzer (my all time favorite sportsman)
(17) Billy Syphers
(18) Fred Wacaser
(19) Cecil Irvan
20M Scoop Davis
(22) Dewane Blunt
(25) Robbie Robinson
25M Ralph Arnold
(27) Harold "squeaky" Davis
(28) Tim Etichison Sr.
(29) Don Pylant
35 Ken Amaya
(37) Terry Chalker
(38) Dan Kienetz
38M Dallas Bache (sp?)
(39) Mike Small
41M Dan Baldridge
(42) Lloyd Beard
(43) "Little" Leroy Gentry
(45) Gary Ponzini
(47) Newton Sparks
47J Ferrell Jones
(50) Frank Cunningham
(51) Dick Arquette (won 1967 Gold Cup at Watsonville)
51C Jack Kistler (The Cllickin' Six)
(57) Eugene Johnson ( J. Cecil won the Gold Cup in this Car)
(58) Glen Bonnema
(59) Ronnie "Boom Boom" Yetter
60 Butch Bishop
(60) Ruben Reeder
(61) Roy Large
(62) Lloyd Keldsen Sr.
(66) Ace Bradford
66M David "Here Come da Judge" Chesia
(67) Chuck Ferguson
(68) Steve Ferguson
(69) Carl Jackson
(71) John Machado
(74) Bob Allen
(75) Bob Gress/Wayne Bookamyer
77M Sam Huff
(80) "Won't you come home" Joe Bailey
(85) Roger Van Dusen
(86) Mike Wahlen
(88) Bob Allen
95 Joe Rolleto
96 Ray Elder
(97) Ron Gravelle
(98) Carl Jackson
(100) Howard Hatch
(122) Cliff Dunn "The Irish Knight"
I obviously missed some as Watsonville was my home track so anyone wanting to add feel free