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Person · officer / director

Mark Slocum

Executive Director · Minnilusa Historical Association

Executive Director at Minnilusa Historical Association. Listed as an officer, director, or key employee across 2 organizations on the Form 990 record.

Ambiguous identity This name matches 2 other individuals we could not verify as the same person. Each is kept as a separate record below — treat them as distinct people unless an explicit match is confirmed.
Organizations
2
Roles reported
2
Reported compensation
$32K
Others who share this name
2

Who this is

Profile

Everything on the left is verified from the IRS filings. The biography on the right is compiled from public web sources and grounded to that filed record.

✓ Verified from filings
Reported as Executive Director of Minnilusa Historical Association, based in Rapid City, SD.
Received $32K in total reported compensation on the most recent Form 990 (Part VII).
Also listed as Board Member of Museum Alliance of Rapid City INC, uncompensated.
Facts extracted directly from each organization's Form 990, Part VII.
Biography In progress
We're building a sourced biography for every person — from filings, news, and public records, citing where each fact comes from. Person-name searches are our single largest source of demand, so this is what we're shipping next.

Affiliations

Organizations

Linked as the same person by IRS Schedule R, a shared officer mailing address, or shared fellow board members.

M
Minnilusa Historical Association Executive Director · $197K revenue · Rapid City, SDADVANCE THE KNOWLEDGE OF PIONEER LIFE BY MANAGING AND MAINTAINING A PIONEER MUSEUM AS A PUBLIC SERVICE, PROMOTING AN AWARENESS OF THE CONTRIBUTIONS…pay $49K → $32KFiled FY2025, FY2021, FY2020 · Source: Form 990, Part VII
$32Kreported comp
Museum Alliance of Rapid City INC Board Member · $757K revenue · Rapid City, SDTHE MISSION OF THE JOURNEY MUSEUM IS TO PRESERVE, EDUCATE AND EXPLORE THE HERITAGE, CULTURES AND ENVIRONMENT OF THE BLACK HILLS REGION TO UNDERSTAND…Filed FY2024, FY2023, FY2021, FY2020 · Source: Form 990, Part VII

Disambiguation

Other people named Mark Slocum

Different individuals who share this name, separated by IRS Schedule R, mailing address, and shared-board evidence. The 990 carries no person identifier, so some may still be the same person.

M
Mark Slocum 1 organization · Johnston, IAChildren's Cancer Connection
M
Mark Slocum 1 organization · Des Moines, IAChildren and Family Urban Ministries

Network

Serves alongside

Other officers, directors & key employees at this person's organizations, by latest reported compensation.

C
Executive Di · FY2025
$112K
T
Interim Exec · FY2023
$56K
T
Former Exec · FY2023
$16K
S
Chair · FY2025
P
Vice Chair · FY2025
K
Secretary · FY2025
R
Treasurer · FY2025
T
Board Member · FY2025
B
City Liaison · FY2025
K
Board Member · FY2025
M
Board Member · FY2025
J
Board Member · FY2025

Network

Recommendations

Written by other verified members of the network — visible once you're a verified person yourself.

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Public data from IRS Form 990 e-file & the Business Master File. Individuals appear here because they were named as an officer, director, or key employee on a nonprofit's Form 990; people are grouped by name plus corroborating evidence (Schedule R, shared address, shared board members). · philanthropy.org