John Bowlby had four children: Richard Bowlby, Sir Anthony Bowlby, Sir Robert Bowlby, and Anne J. Bowlby.

John Mostyn - MP for Flintshire - died in 1644.

John Bowlby was born on 1907-02-26.

John Bowlby died on 1990-09-02.

Attachment, according to John Bowlby, is a strong emotional bond that develops between a child and their caregiver, typically a primary caregiver, which provides the child with a sense of security and safety. Bowlby believed that this attachment plays a crucial role in the child's emotional and social development.