MacAlpine, Rebecca's Lot is a historic home located at Ellicott City, Howard County, Maryland, United States.

She initially lived at nearby Grey Rock but refused to stay there long as her husband had shared that home with his first wife.

[2] It is a 2+1⁄2-story, three-bay by two-bay frame, nineteen room structure clad in novelty siding with corner boards, with a mansard roof covered with wood shingles.

When built in 1868, the house had a low hip roof possibly changed to reflect the new mansard style as at her father's summer home, Linwood.

The Mackubin's owned at least 11 slaves on the property in the years prior to the civil war[3][4] Mrs Mackubin's cousin was the daughter of General Robert E. Lee[5] In 1947, land developer Marcus A Wakefield Jr. purchased the MacApline site subdividing the property for the Dunloggin neighborhood leaving four lots around the MacApline building.