In the 19th century, a series of over 40 encrypted ads was published in a British newspaper. Can a reader decipher them?

From 1833 to 1836 two lovers in England exchanged 35 love messages via encrypted newspaper advertisements. The key is known. Can my readers help me to decrypt these messages?

Here’s another encrypted text from an advertisement. It comes from Canada.

In 1931 US shoe manufacturer Hood published a series of advertisements containing encrypted messages in a boy scout magazine. Can you solve them?