Oldfields School is a college preparatory school for girls in grades 8 through 12 in Sparks Glencoe, Maryland. It was founded in Baltimore County, Maryland in 1867 by Anna Austen McCulloch and is the longest-operating girls' boarding school in Maryland. As of 2016[update], Oldfields School had approximately 100 boarding and day students in grades 8 through 12, coming from 28 states and 15 countries.[1] Among the school's notable graduates was Wallis Warfield Simpson, who became the Duchess of Windsor.[2] In April 2023, Oldfields announced it would close at the end of the 2022–23 school year, setting up a partnership with Garrison Forest School to facilitate accepting its remaining students.[3] However, after a successful fundraising drive and other support from the Oldfields community, the School has resolved to continue operations in the 2023-2024 school year and beyond.[4]