Siobhan Gallagher

Siobhan Gallagher – Editor

Reliable, experienced, meticulous: I'm the ideal copy editor for your bio/memoir, parenting, business, food/wine and history works.


I'm a native US copy and line editor who's been running an editing business for the past ten years. I love working with authors who are passionate about what they write, whether it's fiction or nonfiction, and want it to be the best it can be. Books I've edited have been published by numerous publishers, including Oxford and Cambridge University Presses and nonfiction publisher Longueville Media (NSW, Australia), the latter which I've worked steadily with for the past eight years on books written by such prominent figures as an Australian senator, two prime ministers, a prominent barrister, and a Nobel Peace laureate, as well as various business leaders.
Biographies & Memoirs Business & Management Cooking, Food, Wine, & Spirits Health & Wellbeing History Home & Garden Law Parenting & Families
English (AUS) English (CAN) English (UK) English (US)
  • Honorable Mentions for two short stories from Writer's Digest magazine's international competition (top 100 of 19,000+ entries)
  • Poynter's Institute ACES Certificate for Copy Editing

Work experience


Jan, 2010 — Present

Testimonials include:
[December 2018) As a non-fiction book author, I’ve been working with editors since 1978. Oxford Univ. Press. Univ. of California Press. Johns Hopkins Univ. Press. Yale Univ. Press. In 2009 I started a small imprint, K-Selected Books, which meant: even more editors.

Siobhan is one of the best. I recently worked with her on a massive, non-fiction ms. with loads of endnotes, footnotes, bibliographical essays, and lengthy, quirky bibliography. I told Siobhan I wanted everything to conform to the Chicago Manual of Style. Siobhan was unfazed. She turned this unwieldy tome into something beautiful to read.

She has an amazing talent for keeping her focus as she walks through a forest of information. Nothing seems to escape her eagle eye. Nothing rattles her. Cool. Calm. Cheerful. Within budget. Absolutely professional and discreet. Whereas I, as publisher, had a tempestuous relationship with the author, Siobhan’s was smooth as silk.

I am in awe of her.

Calvin Luther Martin, PhD
Associate Professor of History (retired)
Rutgers University
/and Publisher, K-Selected Books


Jan, 2003 — Aug, 2006 (over 3 years)

Handled most of the media and corporate writing, including the annual report and annual meeting script, for this nonprofit food bank serving the Hartford region of Connecticut. (Volunteer, part-time position.)

The Hartford

Sep, 2001 — Sep, 2006 (about 5 years)

Proofread and helped prepare all materials issued from the office of the EVP and corporate CFO, including annual reports, 10Ks, 10Qs, scripts for earnings calls, board-directed materials for this Fortune 100 insurance and investment firm, reporting directly to the CFO, a Tier 1 executive.


In Good Hands is the biographyof Surgeon Lieutenant CommanderSamuel ‘Sam’ Stening, DSC, RoyalSam joined the services at the outbreakof war. He chose the RAN and served in the Indian Ocean and then inthe famous ‘Scrap Iron Flotilla’ in the Mediterranean, where ... read more
This unique book is a practical guide for parents and parent educators to help children stay safe. In typical Professor Freda Briggs style, it is both explicit and realistic, as she draws on a lifetime of knowledge, research, and practical experience to provid... read more
Written by one of the world's foremost wine and travel experts Wanderlust Wining is a fun delicious journey through many of America's finest wine countries; exploring their outdoor activities and wine tasting specialties. It's a one-stop-read to crafting activ... read more
"Katey Hansen's book provides a balanced view of the Mexican clinics and what they have to offer international cancer patients. It is a mature, wise and engaging look at an often hotly debated topic. It avoids all sensationalism and thus can be recommended to ... read more
Writer, artist, war hero, saint, viper – Arthur Wheen has been described as an ideal companion whose letters ‘disclose a delightful range of wit, oblique fancy, irreverent humour and erudition.’ (Australian Dictionary of Biography)This story of his life, told ... read more
Using top secret documents stolen from Russian archives, historian Pavel Stroilov, a Russian dissident living in London in political exile, has written a masterpiece on the behind-the-scenes politicking of the first Gulf War that exposes direct lies in the mem... read more
This book is a comprehensive and objective guide to understanding hydrogen as a transportation fuel. The effects that pursuing different vehicle technology development paths will have on the economy, the environment, public safety and human health are presente... read more
The Twenty-first Century offers us a chance, a unique chance, to coalesce around common global interests - to reverse the nefarious consequences of climate change, manage clean water reserves that are becoming a rare commodity, save our polluted rivers, lakes,... read more
Helping large family business owners prepare themselves for a successful family business transition Is there such a thing as a successful family business transition? Putting Yourself Before Your Successor, Danielle Fracchia contends yes, but only with adequate... read more
The study of Irish history, once riven and constricted, has recently enjoyed a resurgence, with new practitioners, new approaches, and new methods of investigation. The Oxford Handbook of Modern Irish History represents the diversity of this emerging talent an... read more

Siobhan has 14 reviews





David H.

David H.

Jun, 2023

I loved working with Siobhean. She made great improvement suggestions but just modified the little things and made my manuscript much better overall. I would work with her again without doubt.
Siobhan G.
Thanks, David, as it was a real pleasure working with you and on your well-written manuscript.
Greg W.

Greg W.

Jan, 2022

I am very happy that Siobhan edited my book "Concord Repatriation General Hospital: A March through History". This project was fraught with political interference by people who wanted editorial control and Siobhan gave wise counsel and showed a good sense of humour during the long shenanigans. She was always available and. when we were approaching a hard deadline, went beyond the call of duty ...
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Siobhan G.
Thanks, Greg, it was a real pleasure to work with you on this. Glad it all came together well in the end. It's a great read.
Brice B.

Brice B.

Jul, 2021

Siobhan knows what she is about. Listen to her and your writing will improve.
bunmi A.

bunmi A.

Jan, 2021

I have nothing but praise for Siobhan. She wasn't the first to respond to my request for a quote because she actually read some of my manuscript first, and then gave me a hint of what to expect if she were to take on the job. She handled all the cultural nuances that came with my manuscript (a memoir) very well, giving explanations about the potential issues with English/American styles also. ...
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Siobhan G.
Thank you, Bunmi—it was a real pleasure working with you on your memoir. Best, Siobhan
Dylan M.

Dylan M.

Dec, 2020

I had a terrific experience working with Siobhan. Her professionalism and guidance throughout the editing process was second to none. Not only did I learn a lot along the way, but her timely and clear replies to my queries helped us maintain momentum and conclude our collaboration successfully. Her services are highly recommended!
Siobhan G.
Thank you, Dylan. Your own responsiveness and professionalism helped make this an enjoyable collaboration for me. I would very much welcome working with you again, if you need the services of a cop...
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