Mary Grew (September 1, 1813 – October 10, 1896) was an American abolitionist and suffragist whose career spanned nearly the entire 19th century.

[3] The Female Anti-Slavery Society met frequently, and its annual craft fair raised funds that supported the work of both organizations.

Lucretia Mott, the most prominent Philadelphia abolitionist, traveled to London as a delegate for the national American Anti-Slavery Society.

[6] After they arrived, Bradburn traveled with the Grews to various locations, including Birmingham, as Mary wanted to see her father's birthplace.

That meeting was called on short notice, in part because Lucretia Mott was visiting western New York from Philadelphia.

That same year, Mary Grew lobbied the Pennsylvania legislature to pass the Married Women’s Property Act.

[3] After the Civil War, with ratification of the 15th Amendment imminent, Mary Grew turned more of her attention to women’s suffrage.

When the suffragists split over the exclusion of women from the 15th Amendment, Grew joined Lucy Stone and the American Woman Suffrage Association.

Their right to the ballot does not rest on the way in which they vote.”[10] Mary Grew's accomplishments did not change her father's mind about women's equality.

[7] In November 1870 she chaired the first anniversary meeting of the Pennsylvania Woman Suffrage Association and the poet John Greenleaf Whittier was amongst those expected.

With wisdom far beyond her years And graver than her wondering peers ... She dared the scornful laugh of men, The hounding mob, the slanderer’s pen.

The freed slave thanks her; blessing comes To her from women’s weary homes; The wronged and erring find in her Their censor mild and comforter.

So, New Year’s Eve, I sit and say, By this low wood-fire, ashen gray; Just wishing, as the night shuts down, That I could hear in Boston town, In pleasant Chestnut Avenue, From her own lips, how Mary Grew!

And hear her graceful hostess tell The silver-voicëd oracle Who lately through her parlors spoke As through Dodona’s sacred oak, A wiser truth than any told By Sappho’s lips of ruddy gold,— The way to make the world anew, Is just to grow—as Mary Grew!

[12] When Mary died in Philadelphia five years later on October 10, 1896, her eulogy described their connection as akin to husband and wife: “They had grown like two noble trees, side by side from youth to age, with roots so interlaced that when the one was uptorn the other could never take quite the same hold on life again.”[13] Grew became a member of the Unitarian church where she was able to occasionally preach.