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John C Sheehan

November 15, 2015 Leave a comment

John Clark Sheehan (23 September 1915 – 21 March 1992) was an American organic chemist whose work on synthetic penicillin led to tailor-made forms of the drug. After nine years of hard work at the Massachusetts Institute of Technology (M.I.T.), he became the first to discover a practical method for synthesizing penicillin V. While achieving total synthesis, Sheehan also produced an intermediate compound, 6-aminopenicillanic acid, which turned out to be the foundation of hundreds of kinds of synthetic penicillin. Dr. Sheehan’s research on synthetic penicillin paved the way for the development of customized forms of the lifesaving antibiotic that target specificbacteria. Over the four decades he worked at M.I.T., Sheehan came to hold over 30 patents, including the invention of ampicillin, a commonly used semi-synthetic penicillin that is taken orally rather than by injection. His research covered not only penicillin, but also peptides, other antibiotics, alkaloids, and steroids.”

https://en.wikipedia.org/wiki/John_C._Sheehan

Categories: sheehan, US Tags: , ,

Irish Calling – page on “Sheehan – peaceful clan of County Clare”

September 19, 2015 Leave a comment

This article gives mostly the typical potted information about the origin of the Sheehan clan. However, while it associates the family with Clare, it does not mention, Limerick or Cork. So the information is over simplified…

“Sheehan – peaceful clan of County Clare

Sheehan – peaceful clan of County Clare
Sheehan is a common name in Ireland, and also around much of the English-speaking countries in the world. There are also variations of the name such as Sheahan, O’Sheehan and O’Sheahan.

Back to Irish surnames
The origins of the name can be traced back to the 10th and 11th centuries, the time of the ancient clans in Ireland.
Sheehan – peaceful clan of County Clare
It would have originally come from the word síocháin, which meant peace. So the name would have been given to a man of peace, maybe a religious leader or maybe a former warrior who chose to lay down his weapons.

Síocháin became the name of a clan in the areas now known as County Clare. The members of the clan were the O’Síocháins. In ancient Ireland, it was common to add an ‘O’ prefix in front of a name. This signified that the person was a ‘descendant of’ the clan leader. So the O’Síocháins were the descendants of Síocháin.

The O’Síocháins were close allies of the famous O’Brien clan in Ireland. The two families were committed to supporting each other, in military and political matters.”

http://ireland-calling.com/irish-names-sheehan/

Fanning and Sheehan family history – Tipperary

Sheehans of Quarry St Thurles Co Tipperary Ireland Family History

http://www.fanningfamilyhistory.com/sheehan-thurles-tipperary

copyright   Kathleen Fanning

Categories: genealogy, sheehan Tags: ,

The Sheehan surname

November 27, 2014 Leave a comment

The Sheehan surname in English and in Irish (Gaelige) with variants from duchas.ie

Sheehan  · Ó Seitheacháin · Ó Seithneacháin · Sheahan · Sheane · Sheehan ·Sheehy · Ó Siadhacháin · Ó Síocháin · Ó Síothcháin · Ó Sith · Ó Sithigh · Ó Síththe

Military

Timothy J. Sheehan, Company C, commanded Fort Ridgely, Minnesota. Battle of Fort Ridgley, Dakota War 1862

http://www.usdakotawar.org/history/timothy-j-sheehan

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During the infamous 1968 Tet Offensive —it was “the longest and deadliest battle” of the Vietnam War. West Point graduate Lieutenant Colonel Don Sheehan, USAF (Retired), of Tewksbury, flew into Khe Sanh with a C-130 Hercules cargo plane.

http://valleypatriot.com/valley-patriot-of-the-month-lieutenant-colonel-don-sheehan-usaf/

Academia

Thomas Sheehan has been Professor of Religious Studies at Stanford since 1999

Your Family Stories

December 17, 2011 5 comments

Do you have any Sheehan family history ?

Feel free to reply with your snippets of information…