Adelard Took, born in T.A. 2928, was the only son of Flambard Took.
1 He had five children: three unnamed daughters and two sons, Reginard and Everard.
On September 22, T.A. 3001, Adelard and his children were present at Bilbo's Farewell Party.
1 The morning after Bilbo's disappearance, Adelard received an umbrella as a parting gift.
2 He had failed to return several umbrellas borrowed from Bag End.
References
1 - J.R.R. Tolkien, The Lord of the Rings, Appendix C, "Took of Great Smials"
2 - J.R.R. Tolkien, The Fellowship of the Ring, A Long-expected Party