Dave Clements

Like this plugin? Consider <a href="https://wordpress.org/support/view/plugin-reviews/recent-contributors-widget" title="Review Recent Contributors Widget" rel="ugc">leaving a quick review</a> or writing about how you’ve used it on your site – <a href="https://www.theukedge.com/contact/?utm_source=wordpress.org&utm_medium=plugin&utm_campaign=contact" title="Contact Dave" rel="nofollow ugc">send me a link</a> to that write up if you do.
This plugin is maintained on <a href="https://github.com/theukedge/recent-contributors-widget" rel="nofollow ugc">GitHub</a>, so feel free to use the repository for reporting issues, submitting feature requests and submitting pull requests.
This widget displays a list of all of the users that have written content on your site recently, where you can specify the point in time after which you want to consider posts for inclusion in the widget.
The widget options are:
<ul>
<li>Title – set the widget title (or don’t show one)</li>
<li>Since when – You can either use dynamic, or static date strings to decide how recently content had to be published to be included in the widget. Use strings like 12/31/09, 30 days ago, Monday, -2 weeks. See <a href="http://php.net/manual/en/function.strtotime.php" rel="nofollow ugc">strtotime</a> for more information on dynamic time strings.</li>
<li>Link destination – Set whether the author’s name should point to their list of posts, their website, or nowhere.</li>
<li>Display post count – Decide whether to show how many posts the user has written in the specified time period.</li>
</ul>
I also run <a href="http://www.doitwithwp.com/?utm_source=wordpress.org&utm_medium=plugin&utm_campaign=my-other-sites" title="WordPress Tutorials" rel="nofollow ugc">Do It With WordPress</a>, which has an array of tutorials for managing, modifying and maintaining your WordPress sites, as well as <a href="https://www.thewpbutler.com/?utm_source=wordpress.org&utm_medium=plugin&utm_campaign=wordpress-services" title="WordPress Maintenance Services" rel="nofollow ugc">The WP Butler</a>, a service for keeping your site maintained, backed up, updated and secure.

Recent Contributors Widget

No fuss. No muss. A great way to add a list of recent contributors to your site and let's you decide what qualifies as recent.

Good, simple plugin

This widget shows a list of all of the users that have written content on your site, since a static or dynamic time specified by you.

simsmaster

A modified version of the Widget build in to WordPress. It displays a link for each month, not for each day. 
That?s it more ore less… Ideal for blogs with a low post frequency. Includes all features of the original version, 
incl. caching. 
The Plugin uses the build in language files bundelt with WordPress and should work out of box in your language, if WordPress 
is translated to this language (and it is probably ;))

WP Month Calendar

A modified version of the Widget build in to WordPress. It displays a link for each month, not for each day.

Recent Contributors Widget vs WP Month Calendar