1912

Parcel Post established through efforts of Reuben Brigham of Olney Grange

1915

Electric lighting installed in Insurance Company

1916

Dr. Bird opens temporary hospital in private home Wrenwood in Brinklow; William W. Moore acquires Sandy Spring's first tractor

1917

Mary Ellicott Gilpin of Avalon becomes first woman director of the First National Bank of Sandy Spring

1918

Construction of Montgomery County General Hospital begins

1920

Hospital opens before completion amidst raging flu epidemic that kills Dr. Bird's wife and two of his doctors; Women win right to vote, due in part to suffrage efforts of Sandy Springers Mary Bentley Thomas and Caroline Hallowell Miller; Bank robbers slay Francis Hallowell, a tragedy that leads to founding of State Police; Hospital Women's Board holds first annual Hospital Supper, launching a major community event; Norman Price Post of American Legion holds charter meeting; named for chauffeur of Dr. Jacob Bird who died of flu at Ft. Meade the only Sandy Springer to die during World War I

1923

Local baseball great Jack Bentley signs with New York Giants

1924

Sandy Spring Volunteer Fire Department organizes as fourth unit in county