philanthropy.org | 990 Resource | FAQ Verify yourself
Sign in
MH
Person · officer / director

Mark Hathaway

Treasurer · Saddle & Sirloin Club

Treasurer at Saddle & Sirloin Club. Listed as an officer, director, or key employee across 1 organization on the Form 990 record.

This is me
Ambiguous identity This name matches 4 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
1
Roles reported
1
Others who share this name
4

Who this is

Profile

The filed facts are verified from the IRS filings. The biography is compiled from public web sources and grounded to that filed record.

✓ Verified from filings
●
Reported as Treasurer of Saddle & Sirloin Club, based in Torrance, CA.
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

S
Saddle & Sirloin Club Treasurer · $667K revenue · Torrance, CAHorseback riding clubFiled FY2025 · Source: Form 990, Part VII

Disambiguation

Other people named Mark Hathaway

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 Hathaway 1 organization · Washington, DCPopulation Connection
M
Mark Hathaway 1 organization · Brewer, MEBangor Area Recovery Network INC
M
Mark Hathaway 1 organization · Pepperell, MAChild Evangelism Fellowship of Ma INC
M
Mark Hathaway 1 organization · Calabasas, CAT H E Foundation for Las Virgenes Schools

Network

Serves alongside

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

T
Tom McDonald
Director · FY2025
T
Tom Crone
Director · FY2025
M
Michael Ready
Director · FY2025
C
Charles Callanan
Vice President · FY2025
B
Brad Young
President · FY2025
D
Don Crowell
Secretary · FY2025
N
Nick Konopisos
Director · FY2024
R
Ryan Parker
Director · FY2024
A
Allen Lynch
Vice President · FY2024
M
Mark Macfarlane
Director · FY2023
J
John Webster
Director · FY2022
T
Tim McCarthy
Director · FY2022

Network

Recommendations

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

Loading…

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