Odd By: Amy Le Feuvre

Off to the Wilds Being the Adventures of Two Brothers By: George Manville Fenn

Old Gold The Cruise of the "Jason" Brig By: George Manville Fenn

Old Granny Fox By: Thornton W. Burgess

Old Jack By: William Henry Giles Kingston

Ole Mammy's Torment By: Annie F. Johnston

On Board the Esmeralda Martin Leigh's Log - A Sea Story By: John C. Hutcheson

On Our Selection By: Steele Rudd

On the Banks of the Amazon By: William Henry Giles Kingston

On The Blockade By: Oliver Optic

On the Edge of the Arctic or, An Aeroplane in Snowland By: H. L. (Harry Lincoln) Sayler

Opportunities By: Susan Warner

Oscar The Boy Who Had His Own Way By: Walter Aimwell

Our Little Lady Six Hundred Years Ago By: Emily Sarah Holt

Our Soldier Boy By: George Manville Fenn

Out in the Forty-Five Duncan Keith's Vow By: Emily Sarah Holt

Out on the Pampas Or, The Young Settlers By: George Alfred Henty

Over the Line By: Harold Morrow Sherman

Over the Rocky Mountains Wandering Will in the Land of the Redskin By: Robert Michael Ballantyne

Owen Hartley; or, Ups and Downs A Tale of Land and Sea By: William Henry Giles Kingston

Paddy Finn By: William Henry Giles Kingston

Pathfinder or, The Missing Tenderfoot By: Alan Douglas

Patience Wins War in the Works By: George Manville Fenn

Patty Blossom By: Carolyn Wells

Patty's Friends By: Carolyn Wells

Patty's Social Season By: Carolyn Wells

Patty's Success By: Carolyn Wells

Patty's Summer Days By: Carolyn Wells

Paul Prescott's Charge By: Horatio Alger

Paula the Waldensian By: Eva Lecomte

Paulina and her Pets By: Anonymous

Pearl and Periwinkle By: Anna Graetz