The point is to use nicknames and not formal names.
Surname: Dun, Hud, Roose, Smit, Washing,
DH:
DW:
DD1:
DD2:
DS1:
DS2:
DD3:
Namebank: male: Al, Andy, Art, Artie, Archie, Bart, Ben, Bernie, Bert, Bill, Bob, Buck, Bud, Cal, Charlie, Chris, Dan, Davie, Davy, Ed, Eddie, Ernie, Frank, Fred, Gabe, Gus, Hal, Harve, Huey, Ike, Jake, Jay, Jess, Jim, Joe, Johnnie, Kit, Kev, Lem, Len, Lon, Lou, Lew, Mac, Mal, Max, Matt, Mike, Nat, Ned, Nick, Pat, Phil, Pete, Rafe, Ray, Reggie, Rich, Ron, Rube, Rudy, Sam, Steve, Sid, Theo, Tim, Tom, Tony, Will, Willie, Zack, Zeb
female: Abbie, Addie, Allie, Angie, Annie, Becky, Bessie, Betsy, Beth, Betty, Birdie, Callie, Carrie, Cassie, Cathy, Connie, Dessie, Docia, Dora, Dovie, Dulcie, Ellie, Elsa, Elsie, Esta, Etta, Eula, Evie, Flossie, Gail, Georgie, Gertie, Gina, Gwen, Hattie, Ina, Isa, Jenn, Jennie, Jessie, Jo, Josie, Julie, Kate, Kay, Katie, Kitty, Lena, Libby, Lina, Lizzie, Lola, Lottie, Lula, Lulu, Lydie, Madge, Maggie, Margie, Mamie, Mattie, Meg, Meta, Mila, Mina, Minnie, Mollie, Nan, Nell, Nellie, Nita, Nora, Pattie, Peg, Peggy, Polly, Rae, Reba, Rella, Rosie, Roxie, Ruthie, Sallie, Sally, Sue, Susie, Tessie, Tessa, Theda, Tillie, Tori, Tressa, Vangie, Vernie, Vickie
Feel free to change ies to ys.