The Unknown Child (9 September 1910 – 15 April 1912) was the initially unidentified body of Sidney Leslie Goodwin, a 19-month-old British toddler who was recovered by the Mackay-Bennett after the sinking of the RMS Titanic.

For almost a century, Goodwin's gravestone in the Fairview Cemetery read "Erected to the memory of an unknown child whose remains were recovered after the disaster to the Titanic April 15th 1912".

The body of a fair-haired toddler was the fourth pulled from the ocean by crewman Clifford Crease, from the recovery ship CS Mackay-Bennett, on 21 April 1912.

[5] In 2002, the American PBS television series Secrets of the Dead misidentified the body as Eino Viljami Panula, a 13-month-old Finnish baby, based on DNA testing of three teeth and a small, weathered bone.

[6] The show traced the child's DNA to a Finnish woman by the name of Magda Schleifer whose grandmother's sister was Maria Emilia Panula.

In 2007, however, Canadian researchers at Lakehead University tested the child's HVS1, a type of mitochondrial DNA molecule, and it did not match the Panula family.

He is buried in Fairview Cemetery, Halifax, Nova Scotia, and a marker was added to the memorial with his name, dates of birth and death, and body number.

[10] Sidney Leslie Goodwin (9 September 1910 – 15 April 1912) was a 19-month-old English boy who died during the sinking of the RMS Titanic.

Not much is known about the Goodwins' activities during the voyage, except that they may have been separated by sex in opposite ends of the ship, Frederick and his older sons in the bow, and Augusta with Sidney and the girls in the stern.