Henry Alvah Strong (August 30, 1838 – July 26, 1919) was an American photography businessman.

They had three children: Gertrude Achilles, Helen Carter, and Henry G. Strong.

After Helen's death in 1904 from diabetes, he married Hattie (Corrin) Lockwood on June 14, 1905.

[5] He adopted her son, Corrin, and the family returned to Rochester, New York.

[6] Strong held a lead position in his family's buggy whip manufacturing company prior to meeting George Eastman in 1870.