1908        "The Harbor of the Sun." _Los Angeles Times_ (6 Dec. 1908): II4.

Article raving about San Pedro becoming a major shipping port.

//
When that near time comes, then will San Pedro—our Harbor of the Sun—lure to her shimmering waters the ships of every clime. To the eyes of the keeper of the light on Point Firmin's wind-swept bluffs will the flag of every nation become of daily familiarity. There, night and day, will be heard the chanties of deep-sea sailors as they slip the great ships' anchors in the Port o' Heart's Desire.
//

It's funny that it speaks of chanties "night and day" whereas the previous decade's writings had been taking the tone of "chanties are dead." Therefore, I don't know whether to call this evidence to the contrary or if it just reflects the ca.1905-1906 boost of popularity/awareness of the *idea* of chanties.