OK last update - 3 more to get, one from each of the remaining categories of RACING, DRESSAGE & SHOWING. I've highlighted the remaining ones in red. If anyone needs clues let me know - tho a guess will give you at least a 33% chance of being correct!
EDIT - ALL DONE: ANSWERS BELOW:The categories are:
A. RACING ALL DONE
OLD BONES
SECOND FIDDLE SON OF VIOLA
ZARA
PENNY FARTHING
MIG O'THE MOOR
SCORCHER
PAL O'MINE
B. SHOW JUMPING - ALL DONE
BRONCHO
HIGH HONOURS
THE MANDRAKE
I RODE A WINNER
LUKE CANNON SERIES
RIDING FOR RIDGE ABBEY
GREAT HEART
C. EVENTING - ALL DONE
A HOOF IN THE DOOR
RIDERS SERIES
THE PERFECT HORSE
LOOK BEFORE YOU LEAP
OLYMPIC HORSEMAN
NIGHTSTORM AND THE GRAND SLAM
STORM RIDER
D. DRESSAGE ALL DONE
FLYING CHANGES
STABLES AT HAMPTON
ANOTHER KIND OF COWBOY
THE STAR CROSSED STALLION'S BIG CHANCE
GOLD MEDAL MYSTERY
PUNKI PONIES
LAUREN AND LUCKY
E. SHOWING ALL DONE
CAROLINE CANTERS HOME
DREAM OF FAIR HORSES
THE SILK PURSE
HARLEQUIN HULLABOO
ROSINA COPPER
THE CONNEMARA WHIRLWIND
GUNNER: HURRICANE HORSE
F. HARNESS RACING/TROTTING ALL DONE
TURTLE RIVER FILLY
STRAWBERRY ROAN
THE BLACK STALLION'S BLOOD BAY COLT
CEDAR'S BOY
THE GOOD LUCK COLT
CHEROKEE BILL
RACE A WILD DREAM
ODD ONES OUT: - ALL DONE
RED EMBERS
THE TEAM FROM LOW MOOR
RED ROSETTE
DARK SUNSHINE
TIN CAN TUCKER
PONIES ON THE TRAIL
FROG
The books are:
1. A HOOF IN THE DOOR BY CAROLINE AKRILL
EVENTING2. BRONCHO BY RICHARD BALL
SHOW JUMPING3. HIGH HONOURS BY PAMELA MACGREGOR MORRIS
SHOW JUMPING4. CAROLINE CANTERS HOME BY CAROLINE AKRILL
SHOWING5. PENNY FARTHING BY RICHARD BALL
RACING6. PUNKI PONIES BY SCARLETT TAYLOR
DRESSAGE7. RED ROSETTE BY BERNAGH BRIMS
ODD ONE OUT (MOUNTED GAMES)8. TURTLE RIVER FILLY BY MATT ARMSTRONG
HARNESS RACING9. CHEROKEE BILL BY JEAN BAILEY
HARNESS RACING10. FLYING CHANGES BY CAROLINE AKRILL
DRESSAGE11. HARLEQUIN HULLABALOO BY DOROTHY LYONS
SHOWING12. RIDERS SERIES BY SAMANTHA ALEXANDER
EVENTING13. LOOK BEFORE YOU LEAP BY SHIRLEY FAULKNER-HORNE
EVENTING14. GREAT HEART BY C W ANDERSON
SHOW JUMPING
15. SCORCHER BY MICHAEL MAGUIRE
RACING16. TIN CAN TUCKER BY LYNN HALL
ODD ONE OUT (BARREL RACING)17. THE GOOD LUCK COLT BY GENEVIEVE TORREY EAMES
HARNESS RACING18. LAUREN AND LUCKY BY KELLY McKAIN
DRESSAGE19. GOLD MEDAL MYSTERY BY ALISON ESTES
DRESSAGE20. MIG O'THE MOOR BY NANCY CAFFREY
RACING21. ROSINA COPPER BY KITTY BARNE
SHOWING22. THE PERFECT HORSE BY GILLIAN BAXTER
EVENTING23. I RODE A WINNER BY CPT
SHOW JUMPING24. RED EMBERS BY DOROTHY LYONS
ODD ONE OUT (POLO)25. SECOND FIDDLE SON OF VIOLA BY CAPTAIN DENT
RACING26. ANOTHER KIND OF COWBOY BY SUSAN JUBY
DRESSAGE27. STRAWBERRY ROAN BY DON LANG
HARNESS RACING28. FROG BY COL. S. P. MEEK
ODD ONE OUT (POLO, ETC)29. TO RACE A DREAM BY DEBORAH SAVAGE
HARNESS RACING30. STORM RIDER BY JOAN WEIR
EVENTING31. LUKE CANNON SERIES BY NIGEL ROBINSON
SHOW JUMPING32. THE CONNEMARA WHIRLWIND BY ANNE HENNING
SHOWING
33. ZARA BY JOYCE STRANGER
RACING34. PAL O'MINE BY CLARENCE HAWKES
RACING35. DARK SUNSHINE BY DOROTHY LYONS
ODD ONE OUT (ENDURANCE RIDING) 36. THE STABLES AT HAMPTON BY GILLIAN BAXTER
DRESSAGE37. CEDAR'S BOY BY STEPHEN MEADER
HARNESS RACING38. OLYMPIC HORSEMAN BY JOHN RICHARD YOUNG
EVENTING39. THE MANDRAKE BY KATHLEEN HERALD
SHOW JUMPING40. THE SILK PURSE BY GLENDA SPOONER
SHOWING41. OLD BONES BY MILDREN MASTIN PACE
RACING42. THE BLACK STALLION'S BLOOD BAY COLT BY WALTER FARLEY
HARNESS RACING43. GUNNER: HURRICANE HORSE BY JUDY ANDREKSON
SHOWING44. THE STAR CROSSED STALLIONS BIG CHANCE BY PATRICK LAWSON
DRESSAGE45. A DREAM OF FAIR HORSES BY PATRICIA LEITCH
SHOWING46. PONIES ON THE TRAIL BY DPT
ODD ONE OUT (PONY TREKKING)47. NIGHTSTORM AND THE GRAND SLAM BY STACY GREGG
EVENTING48. THE TEAM FROM LOW MOOR BY GILLIAN BAXTER
ODD ONE OUT (MOUNTED GAMES)49. RIDING FOR RIDGE ABBEY BY PEGGIE CANNAM
SHOW JUMPING