This is a flat illegible stone on the ground behind the Ellen stone. We are linking this unknown Howe to Charles and Lucy Howe just to make sure it is tied into this set of the many "Howes" in Maplewood.
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On this HOWE gravestone:

Charles Howe 1810-1897
Lucy Rice Howe 1816-1896
Caroline R.[Rice] Howe 3/15/1845-2/7/1925

Thomas R. Howe 1836-1890

Children of Charles & Lucy Howe:
Abraham W.[Wellington] Howe died 2/12/1864 AE 22y 8m 6d
Sarah A.[Alethia]Howe died 8/11/1865 AE 19y 4m 5d
Ruthie W.[Witherbee]Howe died 8/22/1865 AE 22y 4m 24d

5 low stones:
Father / Mother / Abraham / Sarah / Ruthie

5 medium stones:
Abraham Howe died 9/17/1859 AE 57y 6m

Mary R. Howe wife of Abraham
died 6/14/1851 AE 19?

Addie H. Newton died 4/20/1880

Ellen _________

Caroline [Howe]

flat stone behind "Ellen":
illegible _____ died __/18/1831? AE 20m?
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1835 March 29 Birth Record Marlborough, MA. THOMAS RICE HOWE born to parents: CHARLES & LUCY HOWE.

1835 April 16 Marriage Record Marlborough, MA. CHARLES HOWE wed to LUCY RICE.

1839 March 21 Birth Record Marlborough, MA. CAROLINE RICE HOWE born to parents: CHARLES & LUCY HOWE. [Note:Gravestone says birth is March 15, 1845]

1840 Sept. 4 Birth Record Marlborough, MA. ANN ELIZABETH HOWE born to parents: CHARLES & LUCY HOWE.

1841 June 6 Birth Record Marlborough, MA. ABRAHAM WELLINGTON HOWE born to parents: CHARLES & LUCY HOWE.

1843 April 2 Birth Record Marlborough, MA. RUTHY WITHERBEE HOWE born to parents: CHARLES & LUCY HOWE.

1846 Oct. 11 Baptism Record Marlborough, MA. SARAH ALETHIA HOWE born to parents: CHARLES [& LUCY] HOWE.

1859 September 17 Death Record ABRAHAM HOWE born about 1802, age 57, farmer, married, his father was also ABRAHAM HOWE. [Possible brother to CHARLES HOWE.]

1860 U.S. Census Marlborough, MA. CHARLES HOWE age 50, farmer, estate $5,375. LUCY HOWE age 44.
Children: THOMAS R. HOWE age 24, farmer;
LUCY W. HOWE age 17;
SARAH A. HOWE age 14;
CHARLES E.[EVERETT] HOWE age 8 months; and
ABRAHAM W. HOWE age 19, farmer.

1860 U.S. Census Marlborough, MA. ADDIE NEWTON age 30, married. Husband GEORGE A. NEWTON age 37, works in shoe factory estate $2,800.
There are 5 young HOWES living with this couple:
Joseph M. Howe 28, works in shoe factory, estate $100; Elizabeth Howe 20; Addie L. Howe 3; Frank E. Howe age 2; and Mary L. Howe age 15. All born in MA.

1864 Feb. 12 Death Record Marlborough, MA. ABRAHAM W. HOWE age 22 years & 8 months; died of consumption; parents: CHARLES HOWE & LUCY RICE.

1865 August 11 Death Record Marlborough, MA. SARAH A. HOWE age 19 years & 4 months & 5 days; died of pulmonary consumption; parents: CHARLES HOWE & LUCY RICE.

1865 August 26 Death Record Marlborough, MA. RUTH W. HOWE, age 22 years & 4 months & 24 days; died of pulmonary consumption; parents: CHARLES HOWE & LUCY RICE.

1870 U.S. Census Landis, Cumberland County, New Jersey. CHARLES HOWE age 59, born in MA, farmer, estate $6,800. Wife LUCY HOWE age 54, born in MA.
Children all born in MA:
THOMAS HOWE 32, laborer
CARRIE [CAROLINE] R. HOWE age 30
CHARLES E. HOWE age 10
and there is EDWARD FARRINGTON age 10.

1880 April 20 Death Record Southborough, Worcester County, MA. ADDIE E. NEWTON age 51, married, died of consumption.

1880 U.S. Census Landis, Cumberland County, New Jersey. CHARLES HOWE age 68, born in Massachusetts, farmer. Wife LUCY R. HOWE, age 65, born in MA. Daughter CARRIE[CAROLINE] R. HOWE age 40. Son EVERETT C.[CHARLES] HOWE age 20, at school.

1880 U.S. Census Mauricetown, Cumberland County, New Jersey. THOMAS R. HOWE age 44, is a butcher. Wife LIZZIE HOWE age 40. Children: JOHN W. HOWE 10; LUCY HOWE 8; CARRIE HOWE 7; WALTER HOWE age 5 years. There is also listed a CHARLES F. HOWE age 18, who is the "Son of Wife," and occupation says "State Prison." All of these people were born in NJ, but Thomas R. Howe was born in MA.

1890 Nov. 4 Cumberland, New Jersey. THOMAS R. HOWE died, he was married in 1855 to Elizabeth Delight Hayes. [Source is from ancestry.com contributor Tracy Linda Perry.]
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"Ode to Maplewood Cemetery"
by Chris Snyder's daughter Emily C.A. Snyder, 2014,
upon being "stumped" by this tender buried stone:

"There’s a stone by my front porch
Shaded by the maple bough
That asks one simple question:
Not who or when – but “Howe?”

Who lies beneath this marker?
When did he pass away?
Was this a him or her—
Or a family of “they?”

What was the man’s profession?
If only someone knew--?
But that is now a “Howe,”
And here’s no hint of “Who.”

What joys, perchance, were hers
That she savoured in her Then,
But How will neither speak of Whom
Much less to answer: “When.”

And whom did this Howe love?
Did she accept his solemn vow?
What wars disturbed their slumber,
As their name disturbs me now?

Stranger graves than this
Have laid their secrets bare
Disclosing who and when—
And better yet still!—Where.

“Why” is often hid from me
Although I sometimes guess
And whisper my conjecture
Over those who’ve gone to rest.

But I am restless, I am restless,
I can’t unknit my brow:
As I look out to the Maplewood
And wonder: “Howe, Howe, Howe!”

So here’s what I will do
(And they can’t stop me anyhow!):
I shall say that they were happy
And it doesn’t matter Howe."
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