The effort to extend the Kansas City streetcar line scored a victory Saturday as voters elected a slate endorsed by expansion advocates to a new board of directors.

According to unofficial results, some 2,636 out of about 35,000 potential voters cast ballots Saturday, choosing among 19 candidates for the board of the Main Street Rail Transportation Development District (TDD), which was formed in a special mail-in election this summer.

All seven of those elected were endorsed by Connect KC, the group spearheading streetcar extension efforts. Four unsuccessful candidates were endorsed by SMART KC, which has opposed the streetcar development. Eight other unsuccessful candidates told KCUR in interviews that they support the streetcar extension, but did not carry Connect KC's endorsement.

Two former Kansas City Council members, Jan Marcason and Cindy Circo, were among the top vote-getters, earning three-year terms on the board. Also elected were Ruben Alonso III to a three-year term, David Johnson and Jeff Krum to two-year terms, and Crissy Dastrup and Leonard J. Graham to one-year terms. The anti-streetcar candidate receiving the most votes, Linda Hart Tabory, received more than 1,000 votes short of election.

The newly elected board will have the power to propose property assessments or other mechanisms for funding an extension of the streetcar from its existing terminal at Union Station south to the Country Club Plaza and UMKC.

Any proposed taxes would still require approval in a third election for voters in the TDD.

(Efforts to extend the streetcar were complicated when Kansas City voters narrowly approved a ballot question in August that could prohibit the city from promoting streetcar extension without a citywide vote. But the impact of that vote on current efforts is unclear, and the City Council has not yet decided how and whether to implement the measure.)

Complete unofficial results of Saturday's election with all precincts reporting are below. Elected candidates are in bold.

David Johnson - 1,807

- 1,807 Cindy Circo - 1,942

- 1,942 Jeff Krum -1,774

-1,774 Timothy Zook - 196

Ruben Alonso III - 1,810

- 1,810 Jan Marcason - 1,947

- 1,947 Crissy Dastrup - 1,773

- 1,773 Leonard J. Graham - 1,688

- 1,688 Ted Derks - 477

Tyler Watt - 166

Greg Allen - 645

William D. Farrar - 110

Linda Hart Tabory - 706

Quinton Lowry Shaw - 168

Timothy Jury - 129

Brendan Waters - 172

Jesse Whidden - 125

Dane Mehringer - 146

Steve McCandless - 690

Host/Contributor Brian Ellison covers Missouri government and politics for KCUR 89.3. He can be reached at brian@kcur.org or followed on Twitter, @ptsbrian.