Whall, Sea Songs and Shanties, was reprinted in 2010, with the title:

Ships, Sea Songs and Shanties, Whall, W. B., and Whall, R. H., 2010, 154 pp., Nabu Press, paperback.
List $21.75, sale price by Amazon.com, $16.97.

(The first edition, 1910, Brown, Son & Ferguson: reprinted, 6th ed. 1927; 1948, 1963, 1974. Hardback except flexible cover in 1926-7.)

Abebooks has the Nabu reprint as low as c. $13, Ferguson hardbacks as low as c. $20.

Bullen, not reprinted, is expensive.

Masefield's Garland is easily obtainable.