All we know of Jacob is that he was born on May 29, 1825 to John and Elizabeth Shackford, that he died around August 12, 1826, that he was 14 months when he died, and that his death was mentioned in the Eastport Sentinel.
We know that Jacob's father, Captain John Shackford (1782-1866), was the captain of the Schooner Boundary at the time of his son's death but do not know if he was on his ship when his son died or at home. No matter where John was, the death of his youngest son must have been tragic for him and his whole family.
"The Angel of Peace", Art reproduction showing an angel floating above a valley, holding a child and flowers, offered as a premium by B.T. Babbitt, soap and baking powder company of New York., 1901, Library of Congress,
Maine State of Maine, "Maine, Births and Christenings, 1739-1900," index," database index, FamilySearch (www.familysearch.org : accessed 29 August 2013), Jacob Shackford b. 29 May 1825.
Wiley Kenneth L., editor, Vital Records from the Eastport Sentinel of Eastport, Maine 1818-1900: Note: Cover and title page of my hard copy edition are misspelled as "Eastport Sentinal" (Camen, Maine: Picton, Press, 1996), page 76