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PeerBasis
Compensation Comparability Determination

Norwalk Historical Society Inc

Executive Director / CEO

EIN 061302694
CT · NTEE A80
FY ending 2024-12-31
June 9, 2026

This analysis benchmarks the total compensation of Diane Jellerette, Executive Director / CEO ($48,000) against every comparable organization that fit the selection criteria — 71 in total — drawn systematically from IRS Form 990 filings, not a hand-picked subset.

Compensation sits at approximately the 56th percentile of comparable organizationswithin the typical range

Benchmarked executive: Diane Jellerette — reported title “EXECUTIVE DIR.”, a direct title match to the Executive Director / CEO role.

How comparable organizations were selected

71 organizations qualified on sector, size, and geography 71 within the band form the benchmarked peer set.

Distribution of comparable compensation

$2,944 total compensation of comparable organizations → $269,602 $48,000
$14,69610th
$23,28625th
$42,062Median
$68,32475th
$89,81290th
$48,000This org · 56th
p10$14,696
p25$23,286
p50$42,062
p75$68,324
p90$89,812
$48,000

Comparable organizations

Each figure is Form 990 Part VII columns D + F (reportable pay plus other compensation and benefits; column F may include amounts from related organizations), normalized to CT cost of living (BEA RPP, 2023) and to its filing year (CPI-U); the reported amount is on each linked 990.

OrganizationStateRevenueMatched titleComp
(reported)
Comp
(adjusted)
FY
Quakertown Alive PA$155,888 Executive Director $67,022 $71,284 2024
Heritage Alliance Of Ne Tn & Sw Va TN$155,315 Director $45,478 $52,490 2023
Westerly Armory Restoration Inc RI$155,312 Treasurer $26,250 $26,845 2024
Hidalgo Foundation TX$157,430 Pres./exec. Dir $44,083 $47,031 2024
East Tennessee Historical Society Foundation TN$157,780 President/ceo $13,361 $14,979 2024
Ponca City Mainstreet Inc OK$152,974 Executive Di $54,014 $63,434 2024
The Grand Foundation Inc NE$152,532 Vice President $13,000 $14,913 2024
Saint Petersburg Preservation Inc FL$159,952 Executive Director $84,621 $84,785 2024
Lovell Historical Society ME$151,332 President $19,815 $21,787 2023
The Allen County Courthouse Preservation Trust Inc IN$161,074 Executive Director $90,789 $102,113 2024
Stockyards Plaza Inc SD$149,752 Executive Director $76,301 $89,812 2024
Wilsons Creek National Battlefield Foundation MO$162,963 Executive Director $46,230 $52,223 2024
National Society Of The Daughters Of The OK$147,152 President $7,500 $9,069 2023
Spring Grove Area Historical PA$165,010 Executive Di $57,335 $60,981 2024
Sunrise Historic And Prehistoric WY$165,662 Principal In $6,000 $6,852 2024
Historical Society Of Southern CA$167,089 Executive Director $23,400 $21,550 2024
Colorado Freedom Memorial Fndtn CO$167,576 President $45,000 $46,021 2024
The Ballard House Project Inc AL$142,515 Executive Director $18,000 $21,353 2023
Great Bridge Battlefield VA$169,994 Executive Director $63,907 $67,755 2023
The Chicago Club Preservation Foundation IL$141,514 Management Representative $29,859 $31,308 2024
Shelby County Historical Society IN$171,028 Executive Dir. $43,269 $48,666 2024
Northwest Arkansas African American Heritage Association Inc AR$172,408 President $23,000 $27,573 2024
Natl Washington-rochambeau Rev Rt A MD$139,631 Executive Di $32,800 $32,705 2024
Elizabethtown Preservation Associat PA$175,372 Director $30,800 $32,759 2024
Montana Cowboy Hall Of Fame And Western MT$176,282 Executive Director $30,000 $35,509 2023

Comp (reported) is the figure on each organization's Form 990 (columns D + F); Comp (adjusted) normalizes it to CT cost of living and 2024 dollars. Click any organization to verify the figure on ProPublica.

Methodology

Comparable organizations were drawn from electronically filed IRS Form 990 returns and matched on sector (NTEE code), budget (a size-adaptive revenue band that tightens as the organization grows), and geography (same-state first, broadening only when too few peers qualify); every organization within the band forms the peer set. To compare fairly across regions and years, peer compensation is normalized to CT cost of living (BEA Regional Price Parities, 2023) and to the subject's filing year (CPI-U). The figure benchmarked is Form 990 Part VII, Section A, columns D + F — reportable pay plus other compensation, benefits, and deferred amounts (column F may include amounts from related organizations) — with the chief executive matched by role. Related-organization amounts (column E) and institutional trustees are excluded. Full methodology: peerbasis.org/methodology.

Sample, role match & sensitivity

Sensitivity — the subject's percentile under alternative compensation definitions:

BasisSubject percentile
Total compensation (D + F), cost-of-living + inflation adjusted — the PeerBasis default56th
Total compensation (D + F), as reported (no adjustments)61st
Reportable pay only (column D), adjusted58th
All sources (D + E + F), adjusted52nd

If the percentile moves materially across these definitions, the result is sensitive to methodology choices, and the board should weigh which basis best fits its facts.

Rebuttable presumption of reasonableness · 26 CFR 53.4958-6

Compensation paid by a tax-exempt organization is presumed reasonable — shifting the burden to the IRS — when three requirements are met. This report supplies the comparability data for the second. The board should record the following in its minutes concurrently with its decision:

Draft board minutes — executive compensation

  1. The compensation of the Executive Director / CEO (Diane Jellerette) was approved in advance by [the Board / Compensation Committee], composed of members with no conflict of interest with respect to the arrangement.
  2. Prior to its determination, the authorized body obtained and relied upon appropriate comparability data, namely the PeerBasis Compensation Comparability Determination dated June 9, 2026, comparing compensation against 71 similarly situated organizations (Same NTEE sector (A80), nationwide + budget 0.67–1.5× revenue).
  3. The authorized body determined that total compensation of $48,000 is reasonable (approximately the 56th percentile of comparable organizations) and documented the basis for this determination concurrently, on [date], by a vote of [__ for / __ against].

Sources: IRS Form 990 e-file data (apps.irs.gov); IRS Business Master File (NTEE classification). Every figure traces to an original public filing — click any organization above to verify it on ProPublica. PeerBasis is a service of Prismind Analytics; its methodology is published, was commissioned for independent adversarial review, and discloses its own limitations. This report is comparability data to support a board's good-faith determination under IRC 4958; it is not legal or tax advice. Generated by PeerBasis on June 9, 2026.