Talk:William McFadden Orr

	Northern Ireland portal This article is within the scope of WikiProject Northern Ireland, a collaborative effort to improve the coverage of Northern Ireland on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.Northern IrelandWikipedia:WikiProject Northern IrelandTemplate:WikiProject Northern IrelandNorthern Ireland-related articles
???	This article has not yet received a rating on the project's importance scale.

	Biography portal This article is within the scope of WikiProject Biography, a collaborative effort to create, develop and organize Wikipedia's articles about people. All interested editors are invited to join the project and contribute to the discussion. For instructions on how to use this banner, please refer to the documentation.BiographyWikipedia:WikiProject BiographyTemplate:WikiProject Biographybiography articles
	This article is supported by the science and academia work group.
	An appropriate infobox may need to be added to this article. Please refer to the list of biography infoboxes for further information.

	Physics portal This article is within the scope of WikiProject Physics, a collaborative effort to improve the coverage of Physics on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.PhysicsWikipedia:WikiProject PhysicsTemplate:WikiProject Physicsphysics articles
Mid	This article has been rated as Mid-importance on the project's importance scale.
	This article is supported by Fluid Dynamics Taskforce.
	This article is supported by Biographies Taskforce.

Ireland Low‑importance

	Ireland portal This article is within the scope of WikiProject Ireland, a collaborative effort to improve the coverage of Ireland on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.IrelandWikipedia:WikiProject IrelandTemplate:WikiProject IrelandIreland articles
Low	This article has been rated as Low-importance on the project's importance scale.
	This article has been marked as needing an infobox.