Marion

The really * hot * popular music of the day was anything sung by Jenny Lind. She performed across the USA and Canada during 1850-1852 (for example, she performed at St Laurence Hall, Toronto soon after it opened in 1851. Sheet music of her songs sold like hotcakes for decades afterwards (rather like Beatles records).

The Levy Collection has sheet music for (e.g.) the following titles

Jenny Lind Songs, No. 1 Thy Blessing, Dearest Mother
Jenny Lind Songs, No. 2 My Home, My Happy Home
Jenny Lind Songs, No. 3 I've Left the Snow-Clad Hills
Jenny Lind Songs, No. 4 The Stars of Heaven are Gleaming
Jenny Lind Songs, No. 5 Lovers Argument

as well as loads of others such as

Jenny Lind's Bird Song
Chanson D'Amerique
By The Sad Sea Waves
The Song of The Drum
Take This Lute
The Lonely Rose

Levy also has a number of more "Traditional" songs sung by Jenny Lind, such as

Comin' Thro' The Rye
Annie Laurie

May be of some use.

Cheers!
Ian