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Compensation 990 is an independent service that uses public IRS Form 990 filings as its source data. We clean and standardize this information, but the original filings may contain errors or omissions. Years on this site refer to the organization’s fiscal year end date on the filing.

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Employees St George's School Thomas P Callahan

Thomas P Callahan

Highest compensated employee

Director of Merck-Horton C at St George's School

Fiscal year ended June 30, 2018. Published on January 24, 2026.

$194,188
2018

Total compensation

Thomas P Callahan has been listed as an employee of St George's School in Form 990 filings since at least fiscal year 2016. Total compensation for Thomas P Callahan has increased by 1% from 2016 to 2018.

Annual compensation details

$194,188
-1.8%
Director of Merck-Horton C
2018
$158k org
30 hrs/wk
$37k other
--
$197,692
+2.8%
Director of Merck-Horton Center
2017
$159k org
30 hrs/wk
$39k other
--

Total compensation by year

Compare the compensation of Thomas P Callahan to:

2018

Other employees at St George's School

Eric F Peterson
Former Head of School
$516,870
$459,683 from orgNo related comp$57,187 other
George W Staples
Operations Director
$304,040
$163,060 from orgNo related comp$140,980 other
Alexandra H Callen
Head of School
$262,535
$182,364 from orgNo related comp$80,171 other
Robert Weston
Associate HEAD of School/Asst SEC
$233,001
$163,388 from orgNo related comp$69,613 other
Christopher Shaw
Dean of Academics
$200,198
$134,720 from orgNo related comp$65,478 other
Elizabeth F McGrath
Finance Director
$187,714
$166,171 from orgNo related comp$21,543 other
Elizabeth Bickford
Dean of Faculty
$187,083
$135,662 from orgNo related comp$51,421 other
John MacKay
Athletic Director
$163,055
$106,771 from orgNo related comp$56,284 other
Cynthia Martin
Associate Director of Advancement
$118,898
$109,164 from orgNo related comp$9,734 other
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Revisions to this profile

January 24, 2026:
2018 St George's School 990 published
January 24, 2026:
2017 St George's School 990 published
January 24, 2026:
2016 St George's School 990 published

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$192,234
Director of Merck-Horton Center
2016
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--

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