Citations:great-grandparent

Singular, hyphenated

 * 1863, Edward Augustus Rand, The Mill at Sandy Creek, page 121:
 * Finally Phil saw his great-grandparent tumble into the mill-flume.
 * 1982, David J. Mangen, Warren A. Peterson, Research Instruments in Social Gerontology: Social Roles and Social Participation, page 12:
 * The 12 role dimensions include: great-grandparent, grandparent, parent, home, kinship, social clubs, business clubs, church activities, peer relationships, clique activities, civic activities, and occupation.
 * 2009, John C. Cavanaugh, Fredda Blanchard-Fields, Adult Development and Aging, page 442:
 * First, being a great-grandparent provides a sense of personal and family renewal—important components for achieving integrity.

Singular, non-hyphenated

 * 1898, Elias Benjamin Baker, Genealogy of the Benjamin family in the United States of America from 1632 to 1898, page 22:
 * His great grandparent, Captain Tillou, was wounded at the battle of Yorktown and the surrender of Cornwallis.
 * 2005, Janet Boddy, Claire Cameron, Peter Moss, Care Work: Present and Future, page 177:
 * Interviews using biographical methods were undertaken with the three adult generations in each family, referred to in the study as the great grandparent, grandparent and parent generation.
 * 2011, Thomas Wright, Game of God, page 262:
 * During the time of his great grandfather who was a noble, born in the in the South African continent, and raised with the knowledge of the world until one day he'd been ask to accompany a mentor on a journey which having been born in a shrine he'd never exited, his great grandparent had readily accepted.

Plural, hyphenated

 * 1876, Thomas Shourds, History And Genealogy of Fenwick's Colony, New Jersey, page 430:
 * Josiah and Sarah Dennis Fithian were the great-grandparents of the present Dr. Enoch Fithian, of Greenwich.
 * 1986, Andrew Cherlin, The New American Grandparent: A Place in the Family, A Life Apart, page 93:
 * Consequently, there is a lack of norms, of widely held beliefs, about how great-grandparents should behave.
 * 2009, Thich Nhat Hanh, Teachings on Love, page 150:
 * You can use photos of your grandparents and great-grandparents, if that will help you visualize them.

Plural, non-hyphenated

 * 1886, W.W. Gannett, "Should Nurses Who Are Tuberculous Be Allowed the Care of Children?", The New England Journal of Medicine, volume 114, page 386:
 * Family History: — The paternal parent, grandparents, great grandparents and all collaterals, so far as known, were free from tuberculosis.
 * 2001, Susan Florio-Ruane, Julie deTar, Teacher Education and the Cultural Imagination, page 1:
 * Like Talese, my ethnic heritage is southern Italian, and my great grandparents came to the United States during the late 19th century, when immigration from eastern and southern Europe was at its peak.
 * 2010, Terence Wesley-Smith, Jon D. Goss, Remaking Area Studies: Teaching and Learning Across Asia and the Pacific, page 203:
 * It is also where my great grandparents were buried, and we called it our history.

Multiple "greats"

 * Two "greats".
 * 1990, Lila Perl, The Great Ancestor Hunt: The Fun of Finding Out Who You Are, page 42:
 * Can you go beyond the spaces on the four-generation chart to the generation of your great-great-grandparents?
 * 1994, Naomi Zack, Race and Mixed Race, page 83:
 * Virginia continued to define a Negro as anyone with a black grandparent until 1910, when the definition was changed to "one-sixteenth" or a great-great-grandparent.
 * 2009, Anita Bryce, Curly Grandma's Letters: Writing to Kids & Capturing Your Autobiography, page 25:
 * Scan an old photo of a great, great grandparent or other relative, who is long gone.


 * Three "greats".


 * 2010, Tony Frudakis, Ph.D., Molecular Photofitting: Predicting Ancestry and Phenotype Using DNA, page 35:
 * For example, a person with a single American Indian great-great-great grandparent might not have inherited any Native American chromosome segments, so their genetic ancestry would be 0% Native American.


 * Four "greats".


 * 2012, Barbara M. Drew, Ancestry Potpourri, page 1:
 * The OA is the great-great-great-great-grandparent(s) of descendants removed by six generations (youngest) whenever seven generations are traced (includes OZ).


 * Five "greats".


 * Six "greats".


 * Seven "greats".


 * Eight "greats".


 * Nine "greats".


 * Ten "greats".