Here are some suggestions!
Black Beauty, by Anna Sewell
Pollyanna, by Eleanor Porter
The Secret Garden, by Frances Hodgson Burnett
The Railway Children, by Edith Nesbit
A Book of Golden Deeds, by Charlotte Yonge
Bambi by Felix Salten
The Borrowers by Mary Norton
Lassie Come Home by Eric Knight
Gentle Ben by Walt Morey
Gone Away Lake by Elizabeth Enright
Thimble Summer by Elizabeth Enright
Return To Gone Away by Elizabeth Enright
Little House on the Prairie series Laura Ingalls Wilder
Calico Captive, by Elizabeth George Speare
The Sign of the Beaver, by Elizabeth George Speare
Johnny Tremain by Esther Forbes
Tree of Freedom by Rebecca Caudill
Amos Fortune, Free Man by Elizabeth Yates
The Reb and the Redcoats by Constance Savery (British view of revolution)
Justin Morgan Had a Horse by Marguerite Henry
The Chronicles of Narnia series, by C.S. Lewis
The Lion, the Witch and the Wardrobe
The Magician's Nephew
The Horse and His Boy
Prince Caspian
The Voyage of the Dawn Treader
The Silver Chair
The Last Battle
The Matchlock Gun by Walter D. Edmonds
The Courage of Sarah Noble by Alice Dalgliesh
The Remarkable Journey of Prince Jen by Lloyd Alexander
Twenty and Ten by Claire Huchet Bishop
Rabbit Hill by Robert Lawson
The Twenty-One Balloons by William Pene du Bois
My Side of the Mountain by Jean Craighead George
Sarah Plain and Tall series by Patricia MacLachlan
Sarah Plain and Tall
Skylark
Caleb Story
More Perfect than the Moon
Grandfather's Dance
Mrs Frisby and the Rats of NIMH by Robert C. O'Brien
The Rescuers by Margery Sharp (and others in the series)
The Cricket in Times Square by George Selden
Homer Price by Robert McCloskey
Centerburg Tales by Robert McCloskey
The Great Brain by John D. Fitzgerald
Noel Streatfeild books
Ballet Shoes, Skating Shoes
Dancing Shoes
Theater Shoes
Kate Seredy books, including:
The Good Master
The White Stag
The Singing Tree
The Chestry Oak