Looking for something else, I found an anthology by John Greenleaf Adams, a Universalist minister, called Our Day: A Gift for the Times (1848), an anthology of reformist literature by some of the greats of Universalist and Unitarian history, though I don't see an mention of the denominational affiliation of the writers.
Even in only a few minutes, I was taken by little glints of a modern sensibility come through.
- John Greenleaf Adams denounced capital punishment using two arguments -- it hasn't been shown to deter crime and it brutalizes society -- live in anti-capital-punishment campaigns today.
- Mary Livermore contributed a mortality tale about a dissolute husband ripe for Jerry Springer.
- A "Rev. C. Stetson" wrote about the "alleged inferiority of the African race" and starts with a familiar discussion of the n-word.
- Adams wrote an article about Thomas Clarkson, recently deceased (1846), who was a leading partner in the Claphamite action against slavery in Great Britain.
Horace Greely and Theodore Parker submitted articles, too.
Download the book as a PDF here.