In crossing a bridge, if one sees two white horses on it (in different teams) and wishes at once for a man to marry her, she’ll get him.
Peabody, Mass.

In crossing a bridge, if one sees two white horses on it (in different teams) and wishes at once for a man to marry her, she’ll get him.
Source: Current Superstitions (1896), entry 207.
Fanny D. Bergen, editor.
Modern normalized navigation; the historical attribution above remains unchanged.