Van Boskerck received a commission into the Coast Guard, then the Revenue Cutter Service on May 20, 1891. He would go on to serve twenty-three years of sea duty out of a thirty-six-year career, not leaving the Coast Guard until his death in 1927. Previously, he served as a first lieutenant. Van Boskerck's first prominent position was in 1914 and 1915, when he was tasked with overseeing the construction of the cutters and at
Newport News,
Virginia. In 1917, he was made captain of the Port of
Philadelphia, while simultaneously being an aide for the Fourth Naval District there. He held these positions during the U.S. involvement in
World War I, and was the first member of the Coast Guard to detect a German
U-boat in the
Atlantic.
Post-World War I When the war ended, Van Boskerck was once again tasked with construction oversight, this time on repairs of the cutter
USCGC Bear. In the summer of 1920, he commanded a cruise of
Bear to the
Bering Sea. In 1922, he was placed in command of USCGC
Yamacraw, headquartered in
Savannah, Georgia, aboard which he wrote the lyrics to "Semper Paratus". The vessel's primary mission at the time was to intercept illegal shipments of alcohol (during
Prohibition) aboard boats off the coast of
Florida and the
Carolinas. In 1923, Van Boskerck went to
Newport, Rhode Island to attend the
Naval War College, and in 1924 he was placed in command of the Great Lakes District. A year later, in 1925, he was named assistant inspector of the Northwest District. In 1925, he was put in command of the Bering Sea Patrol, headquartered in
Unalaska,
Alaska, and held the post into 1926. It was here he would write the music to "Semper Paratus". In 1926, Van Boskerck returned to the East Coast and was named commander of the Norfolk Division in October in order to fill a vacancy. That fall, he took a week of leave and traveled to
Washington, D.C., in order to discuss his retirement from the Coast Guard with Lieutenant Colonel Harvey Miller, also publisher and editor of
Coast Guard Magazine. Miller offered him a job as national commander of the
Army and Navy Union, which Van Boskerck was honored by. He would have been the first former Coast Guard member to hold the position. That day, he also persuaded Miller to publish "Semper Paratus". == Creation of "Semper Paratus" ==