Information below provided by graver:
https://www.findagrave.com/user/profile/47645969

Maiden Name was Wertz not Myers. Daughter of Benneville Wertz and Elizabeth Trump. First husband was Abraham Collins based on Civil War pension files. 2nd husband Israel Walmer. All documented.

Her Marriage:
14 January 1865 • Harrisburg, Dauphin County, Pennsylvania
Israel Walmer (1843–1907)

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Died at the Harrisburg Hospital
Mortuary Notice
Date: Wednesday, June 11, 1913 Paper: Patriot (Harrisburg, Pennsylvania) Volume: 71 Issue: 8 Page: 11
Burial indicated in the Harrisburg Cemetery

Pennsylvania, Death Certificates, 1906-1964
BIRTH, MARRIAGE & DEATH
NAME: Mrs Israel Walmer
BIRTH: 23 Mar 1843 - Pennsylvania
DEATH: 10 Jun 1913 - Harrisburg, Dauphin, Pennsylvania, USA

1880 Census:

Israel Walmer 37
Mary Walmer 37
Geo. Walmer 16
Israel Walmer 15
Annie Walmer 10
Wm. Walmer 7
Monroe Walmer 5

1900 Census:

Israel Walmer 51
Mary Walmer 57 or 51
Frank Walmer 19
Howard Walmer 17
Edna Walmer 5

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Ancestry Tree:
https://www.ancestry.com/family-tree/person/tree/5662392/person/6042877864/facts

Mary Ann Wertz
1843–1913
BIRTH 23 MARCH 1843 • Dauphin County, Pennsylvania
DEATH 10 JUNE 1913 • Harrisburg, Pennsylvania

Parents:
Benneville/Benewell Wertz
1820–1892

Elizabeth Trump
1820–1874

Siblings:
Amanda Wertz
1843–1894

John H. Wertz
1845–1864

William Wertz
1847–1865

Magdalene Melinda Wertz
1848–1848

Joseph Wertz
1849–1921

Lucinda Rae Wertz
1851–

Catharine Ann Wertz
1853–1934

Harry Wertz
1855–1921

Elizabeth Wertz
1857–

Reuben Wertz
1858–1934

1st Spouse:
Abraham Collins - m. March 12, 1864 - d. May 27, 1864 - buried in Arlington Cemetery
–1864

2nd Spouse:
Israel Walmer
1843–1907

Children:
George Walmer
1863–

Israel Walmer
1865–1937

John Walmer
1869–

Anna Elizabeth Walmer
1869–1942

William H. Walmer
1872–1887

Monroe Walmer
1875–

Calvin Walmer
1877–

Frank Walmer
1881–1922

Howard Warfield Walmer
1883–1946