Ripple Effect Collective

Be the Change — One Ripple at a time

At the Dubuque County Historical Society and its properties, the National Mississippi River Museum & Aquarium and the Mathias Ham Historic Site, every ripple creates a wave of change. By joining the Ripple Effect Collective, our recurring monthly giving program, you provide essential, sustained support for educational experiences, conservation projects, and the preservation of our shared history.

Create a Lasting Impact

With a budget-friendly monthly subscription, you help ensure that history and rivers come alive for all visitors.

Monthly Gift	The Impact	Breakdown
$10/Month	River excursions for local school groups	Less than $2.50/week
$25/Month	Provides water quality testing kits for an entire year	Less than $1/day
$50/Month	Supports our freshwater mussel program	Less than $2/day
$100/Month	Empowers up to 15 teens annually through our Teens Take C.A.A.R.E initiatives	Around $3/day

Exclusive Benefits for Monthly Donors

As a member of the Ripple Effect Collective, you'll receive:

Complimentary tickets to select special events
A quarterly impact e-newsletter showing the difference you make
Recognition as a valued changemaker in our community

Why Give Monthly

Amplify Your Impact - Small, recurring gifts lead to big, lasting change year-round
Budget-Friendly Giving - Spread your generosity throughout the year! Much like a subscription that supports what matters most to you, your monthly gift offers a budget-friendly way to create lasting impact.
Enjoy Special Perks - Your loyalty comes with gratitude, recognition, and exclusive access.

Start Your Ripple Today

Whether you're passionate about preserving history, protecting rivers, or inspiring lifelong learners, your monthly gift powers it all by supporting the River Museum Fund. Join the Ripple Effect Collective today and help shape a stronger, more sustainable future one ripple at a time.

Join Here