Mark Duplass

by follers on June 13, 2015

65th Annual Writers Guild of America West Coast Awards - Arrivals

Birth Name: Mark David Duplass

Place of Birth: New Orleans, Louisiana, U.S.

Date of Birth: December 7, 1976

Ethnicity: Italian/Sicilian (maternal grandmother), Cajun French, German, Swiss-German, about 1/16th Ashkenazi Jewish

Mark Duplass is an American actor, writer, director, producer, and musician. His brother is filmmaker and actor Jay Duplass. Mark is married to filmmaker and actress Katie Aselton, with whom he has two children.

Mark was raised Catholic.

Mark’s paternal grandfather is Lawrence Stein Duplass (the son of John Theodore/B. Duplass and Orene/Irene Frances Stein). John was born in Louisiana. Orene was the daughter of Adolphe/Adolph Jacob Stein, who was a German Jewish immigrant, and of Mary Aufdemorte, whose parents were German.

Mark’s paternal grandmother is June Sehrt (the daughter of daughter of John J. Sehrt and Norma Othilda Spraul). Mark’s great-grandfather John was of German descent, and was the son of William F. Sehrt and Katherine/Catherine/Katie Sulfsted, both of whom were the children of immigrants. Norma was the daughter of August Spraul, whose parents were German, and of Olivia Caselia Rossvalley/Rosevalley, who was of German descent.

Mark’s maternal grandfather was John Anthony Ernst, Jr. (the son of John Anthony Ernst and Leontine Pauline Bordes). John was the son of Joseph Ernst/Earnest, whose parents were German, and of Josephine Keller, whose parents were Swiss-German. Leontine was the daughter of French parents, Alexandre Bordes and Marie Sauné.

Mark’s maternal grandmother was Cathryn/Catherine Mae Gallo (the daughter of Salvadore “Samuel” George Gallo and Theresa M. Corceller). Cathryn was of Italian/Sicilian descent, with roots in Ustica island. Theresa was the daughter of Giuseppe Caserti/Caserta/Cazzetta/Corceller and Caterina/Catherine Rando.

Sources: Marriage record of Mark’s paternal grandparents, Lawrence Stein Duplass and June Sehrt – https://familysearch.org

Mark’s paternal grandfather, Lawrence Stein Duplass, on the 1920 U.S. Census – https://www.familysearch.org
Lawrence Stein Duplass on the 1930 U.S. Census – https://familysearch.org

Mark’s paternal great-grandmother, Orene/Irene Frances Stein, on the 1900 U.S. Census – https://www.familysearch.org
Orene/Irene Frances Stein on the 1910 U.S. Census – https://www.familysearch.org

Mark’s paternal grandmother, June Sehrt, on the 1930 U.S. Census – https://familysearch.org

Mark’s paternal great-grandfather, John J. Sehrt, on the 1910 U.S. Census – https://familysearch.org
John J. Sehrt on the 1920 U.S. Census – https://www.familysearch.org

Marriage record of Mark’s paternal great-great-grandparents, William F. Sehrt and Katherine/Catherine/Katie Sulfsted – https://familysearch.org

Mark’s paternal great-grandmother, Norma Othilda Spraul, on the 1920 U.S. Census – https://familysearch.org

Genealogy of Mark’s paternal great-great-grandparents, August Spraul and Olivia Caselia Rossvalley/Rosevalley – https://www.findagrave.com

Marriage record of Mark’s paternal great-great-grandparents, August Spraul and Olivia Caselia Rossvalley/Rosevalley – https://familysearch.org

Marriage record of Mark’s maternal great-grandparents, John Anthony Ernst and Leontine Pauline Bordes – https://www.familysearch.org

Mark’s maternal great-grandfather, John Anthony Ernst, on the 1900 U.S. Census – https://www.familysearch.org

Mark’s maternal great-great-grandparents, Joseph Ernst/Earnest and Josephine Keller, on the 1880 U.S. Census – https://www.familysearch.org

Genealogy of Mark’s maternal great-grandmother, Theresa M. Corceller (focusing on her father’s side) – http://www.ustica.org

Marriage record of Mark’s maternal great-great-grandparents, Giuseppe Caserti/Caserta/Cazzetta/Corceller and Caterina/Catherine Rando – https://www.familysearch.org

Photo by Prphotos.com

{ 12 comments… read them below or add one }

madman November 6, 2017 at 12:46 am

John Duplass was born in Louisiana, to a French father and a Spanish mother, according to the 1920 census.
https://www.familysearch.org/ark:/61903/1:1:MV72-R95

Mary Aufdemorte’s parents were also German.
https://www.familysearch.org/ark:/61903/1:1:MS55-CQ2
https://www.familysearch.org/ark:/61903/1:1:MPY2-KDF

Where does John J. Sehrt’s Swiss-German ancestry come from?
https://www.familysearch.org/ark:/61903/1:1:MPY8-2MJ
https://www.familysearch.org/ark:/61903/1:1:MV74-KWD

Olivia Rosevalley’s mother was also of German descent (likely, since her surname was “Schmitz”).

Leontine’s parents were French. —> John was the son of Joseph Ernst, whose parents were German, and Josephine Keller, whose parents were Swiss-German. Leontine was the daughter of French parents, Alexandre Bordes and Marie Sauné.

https://www.familysearch.org/ark:/61903/1:1:QKJC-HPYB
https://www.familysearch.org/ark:/61903/1:1:MS5P-4TS
https://www.familysearch.org/ark:/61903/1:1:MDX4-M29

follers November 6, 2017 at 3:23 pm
madman November 6, 2017 at 3:29 pm

I saw both of them too, at the same time as I thought it was strange that I couldn’t find his great-grandfather on a census, despite him not having a common name. Yet the though never crossed my mind. Do you really think it could be the case? It would mean he is one eighth Louisian Creole.

andrew October 28, 2017 at 4:46 pm
bablah October 28, 2017 at 5:28 pm

So, her parents are Giuseppe Corceller and Sandra Rando.

I found their marriage record:
https://www.familysearch.org/ark:/61903/1:1:QKJW-GVRW

bablah November 1, 2017 at 12:40 pm

follers, did you see the link andrew posted?

follers November 1, 2017 at 3:20 pm

It’s on the list.

andrew November 6, 2017 at 3:43 pm

All those people are Sicilian. That is a genealogy site about Sicilians: http://www.ustica.org/genealogy/index.htm

andrew November 6, 2017 at 3:50 pm

Specifically from Ustica island

bablah March 14, 2017 at 7:45 am

If Irene is his great-grandmother, then this is his grandfather Lawrence Stein Duplass:
https://familysearch.org/ark:/61903/1:1:XMRV-LVV
https://familysearch.org/ark:/61903/1:1:KC1R-GGT

He’s the son of John Theodore Duplass and Irene Stein.

His grandmother is June Sehrt daughter of John J Sehrt and Norma O Spraul:
https://familysearch.org/ark:/61903/1:1:QKRR-GXVR
https://familysearch.org/ark:/61903/1:1:QKJZ-7PML
https://familysearch.org/ark:/61903/1:1:XMRQ-68L

bablah March 14, 2017 at 7:54 am

John Sehrt’s parents William Sehrt and Katherine Sulfsted are both of German descent:
https://familysearch.org/ark:/61903/1:1:MPY8-2MJ
https://familysearch.org/ark:/61903/1:1:QKJH-JCZQ

Norma’s parents were August Spraul and Olivia Rosevalley (probably a trenslation of Rosenthal):
https://familysearch.org/ark:/61903/1:1:VF4Y-VYV
https://familysearch.org/ark:/61903/1:1:MV7K-KW9

August’s paretns were from Germany, while Olivia’s father was from Germany and her mother was from Louisiana.

bablah March 14, 2017 at 7:56 am

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