Question: ECI was established by Ben Affleck and another who if the daughter of who?
Context: Gone Baby Gone is a 2007 American neo-noir mystery drama film directed by Ben Affleck.  In his feature-length directorial debut, Affleck cowrote the screenplay with Aaron Stockard based on the novel "Gone, Baby, Gone" by Dennis Lehane.  The film stars Casey Affleck and Michelle Monaghan as two private investigators hunting for a little girl who was abducted from the Boston neighborhood of Dorchester.  The supporting cast includes Morgan Freeman, Ed Harris and Amy Ryan. Changing Lanes is a 2002 American drama thriller film directed by Roger Michell and starring Ben Affleck and Samuel L. Jackson.  The film follows a successful, young Wall Street lawyer (Affleck) who accidentally crashes his car into a vehicle driven by a middle-aged, recovering alcoholic insurance salesman (Jackson).  After the lawyer leaves the scene of the accident, the two men try to get back at each other, engaging in a variety of immoral and illegal actions that end up having a major impact on each man's life. Benjamin "Benny" Ciaramello"' (born April 4, 1981) is an American actor.  He first appeared in the blockbuster remake of "War of the Worlds" directed by Steven Spielberg in 2005, next in the independent film "Saint Francis" alongside Dita Von Teese, and then later that same year in "The Guardian" alongside Ashton Kutcher and Kevin Costner.  He would continue on next to star opposite Isabella Rossellini in the showtime pilot "Filthy Gorgeous" written by Ron Nyswaner the Academy Award nominated writer of the film "Philadelphia" and produced by Neil Meron and Craig Zadan the Academy Award-winning producing team of "Chicago".  However, it wasn't until two years later that he became most known to the public for his role as Santiago Herrera, the troubled delinquent in season 2 of the Emmy Award-winning "Friday Night Lights".  Shortly after, he signed a deal with ABC in which he guest starred on multiple programs for the network including his recent work as Scott Murphy in the ABC series "Secrets and Lies" opposite Juliette Lewis and Ryan Phillippe in 2015.  He has recently been cast in the 1920s crime film "Live By Night" as Paulo Bartolo alongside Ben Affleck and Chris Messina.  The film will be directed by Affleck, produced by Leonardo DiCaprio and Warner Brothers, and is set to be released in October 2017. Ben Affleck is an American actor and filmmaker.  His first screen appearance was at the age of eight in a minor part in the independent film "The Dark End of the Street" (1981).  He went on to appear in several television shows, including the PBS educational programs "The Voyage of the Mimi" (1984) and "The Second Voyage of the Mimi" (1988), and an episode of the "ABC Afterschool Special" in 1986.  Affleck played an antisemite in the sports film "School Ties" (1992) and featured as a regular on the television drama "Against the Grain" (1993).  He gained attention for playing the supporting part of a high-school senior in Richard Linklater's cult film "Dazed and Confused" (1993), after which he had his first leading role in Rich Wilkes's comedy "Glory Daze" (1995). Gone Girl is a 2014 American psychological thriller film directed by David Fincher and written by Gillian Flynn, based on her 2012 novel of the same name.  The film stars Ben Affleck, Rosamund Pike, Neil Patrick Harris, and Tyler Perry.  Set in Missouri, the story begins as a mystery that follows the events surrounding Nick Dunne (Affleck), who becomes the primary suspect in the sudden disappearance of his wife, Amy (Pike). "Argo" is a 2012 political thriller directed by Ben Affleck, and produced by Grant Heslov, Affleck and George Clooney.  The screenplay by Chris Terrio was adapted from sections of the Central Intelligence Agency (CIA) operative Tony Mendez's memoir "The Master of Disguise: My Secret Life in the CIA", and the 2007 "Wired" article "The Great Escape" by Joshuah Bearman on the Canadian Caper.  The film stars Affleck as Mendez, who attempts to rescue six United States diplomats from Tehran, Iran, during the 1979–81 Iran hostage crisis by pretending that they are part of a film crew scouting the country for the filming of a fictitious science-fiction film, "Argo".  Bryan Cranston, Alan Arkin, and John Goodman feature in supporting roles. Matt Damon is an American actor, producer and screenwriter.  He made his screen debut at the age of 18 with a minor role in the 1988 film "Mystic Pizza".  After appearing in a series of supporting parts in much of the 1990s, Francis Ford Coppola cast Damon as the lead of the 1997 legal drama "The Rainmaker".  His breakthrough came later that year when he played the title role of an unrecognized genius in "Good Will Hunting", a drama which he also co-wrote with Ben Affleck.  Damon and Affleck won the Academy Award for Best Original Screenplay and Damon was nominated for Best Actor.  He followed it by playing the title roles of a soldier in Steven Spielberg's war drama "Saving Private Ryan" (1998) and of the criminal Tom Ripley in the thriller "The Talented Mr. Ripley" (1999), both of which gained critical and commercial success.  Damon's profile continued to expand in the 2000s, as he took on starring roles in two lucrative film franchises.  He featured as a con man in Steven Soderbergh's "Ocean's Trilogy" (2001–07) and played the titular spy Jason Bourne in four of the five films in the "Bourne" series (2002–16). The Eastern Congo Initiative (ECI) is an American nonprofit organization established by Ben Affleck and Whitney Williams in 2010 as "the first U.S. based advocacy and grant-making initiative wholly focused on working with and for the people of eastern Congo".  ECI provides development grants and international advocacy for community-building initiatives in the Democratic Republic of Congo. Whitney Williams is an American businesswoman and philanthropist, currently serving as Vice-Chair of the board for Eastern Congo Initiative and Founder + CEO of the Seattle-based consultancy williamsworks.  She is the daughter of former Congressman Pat Williams and former Montana Senate Majority Leader Carol Williams. " The Washington Post" has referred to the Williams family as the “first family of Montana politics.”  Her brother is artist Griff Williams. Kevin Smith's films often feature the same actors, including Jason Lee, Ben Affleck, Joey Lauren Adams (for whom he wrote the lead role in "Chasing Amy"), Jason Mewes and Matt Damon.  Other well-known performers featured in more than one Smith film include Chris Rock, Shannen Doherty, George Carlin, Ethan Suplee, Joe Quesada, Jason Biggs, Casey Affleck and Alanis Morissette.  Some lesser-known regulars in Smith's films include Walt Flanagan, Bryan Johnson, Scott Mosier, Ernest O'Donnell, John Willyung, Carmen Lee, Jeff Anderson, Brian O'Halloran, Dwight Ewell, Kimberly Loughran and Vincent Pereira.  He has also cast himself in many of his films.
Answer: former Congressman Pat Williams and former Montana Senate Majority Leader Carol Williams