1910 – New post office opens on Ocean Avenue.
1910 – Pineapple crops have a bad season due to blight and cheap pineapples from Cuba.
1910 – Leading citizen Cullen Pence dies in tragic accident with handgun. Pence Park is named in his honor.
1910 – Ten-year-old Lyman Boomer draws bird’s eye map of the town – later becomes illustrator and author.
1911 – Major Nathan S. Boynton passes away May 27, 1911 in Port Huron, Michigan.
1911 – Horace Bentley Murray completes the wooden swing bridge across the Florida Coast Line Canal (today’s Intracoastal Water).
1911 – H.B. Murray builds a new home in Boynton, still standing today.
1911 – Emory Hodges becomes the first Boynton citizen to own an automobile.
1912 – A. Romyn Pierson purchased the inland of Manalapan as a gift for his wife, Leila.
1913 – Boynton Elementary School, designed by Baltimore architect William Maughlin opens on Ocean Avenue.
1914 – World War I begins. Boynton Beach Women assist in the efforts with the American Red Cross.
1919 – Flu epidemic claims the lives of nearly a dozen Boynton area pioneers.