These books were all written in the 1940s and 50s, but they still hold up as good reads. They are ones that parents and grandparents remember reading when they were children.
All-of-a-kind Family  series (there are five in all) by Sydney Taylor: It's the turn of the century in New York's Lower East Side and a sense of adventure and excitement abounds for five young sisters - Ella, Henny, Sarah, Charlotte and Gertie and eventually a new baby brother.
Betsy-Tacy  books by Maud Hart Lovelace: There are lots of children on Hill Street, but no little girls Betsy's age. So when a new family moves into the house across the street, there's a little girl she can play with. From the moment they meet at Betsy's fifth birthday party, Betsy and Tacy become such good friends that everyone starts to think of them as one person--Betsy-Tacy. Eventually another friend named Tib joins the group. The first few books in the series they are little girls, then starting with Heaven to Betsy , there is one book for every year of high school plus a couple years after, and a couple stories about two other friends Emily , Carney, and Winona . These are also set int he early 1900s.
Lois Lenski's American Regional Series. HCPL only has a few of the 17 that Lois Lenski wrote because the others are out of print.
Strawberry GIrl  Newbery winner - Birdie Boyer moves with her family to Florida to build a farm. Birdie has her heart set on growing those strawberries and works as hard as she can to help her family plant and harvest.
Texas Tomboy  - Charlotte, who prefers to be called Charlie, is an eight-year-old growing up on a Texas cattle ranch. She loves to ride out with her father everyday and help him with ranch duties. She has no interest in wearing dresses, helping her mother in the house, or going to school.
Judy's Journey  Jim Drummond and his family want a piece of land of their very own, but for now they are traveling as migrant farm workers which brings daughter Judy in contact with lots of people of different walks of life, color, and beliefs.
Flood Friday  On Friday, August 19, 1955, after days of relentless rain, the three major rivers in Connecticut flooded, driving many people from their homes. Flood Friday is a fictional account of what this was like for several children in the area. There are dangerous rescues by boat and helicoptor, some houses are completely destroyed, and families are sheltered in school buildings.