Trying to identify a saga

Hi all,

I'm a librarian trying to identify a historical fiction saga for a
customer, so far with no luck. So, I'm seeking help here.

The cutosmer cannot recall either the author or the titles, although
she knows that the author was a woman.

Here's what else we know:

- she read the books many years ago in the large print format
- the series was more than a triology
- it followed the story of several generations of women in a family
- the women were Anglo-American (it was set in America)
- the story started around the 1700s and finished around WW2
- the main theme of the books revolved around family life
- they were small town folk

That's all I have to go on and my reference books here aren't coming
up with satisfactory results.

Any help would be appreciated.

Glenn Harper