Overview

Last Seen: November 8, 1974
Location: Santa Cruz, Santa Cruz County, California
Age: 26
Classification: Endangered Missing
Known Alias: Tiffany Felky/Felkey
Investigating Agency: Santa Cruz County Sheriff’s Office
Agency Case Number: 1400135 / 14-00135
NamUs Number: MP26191

Main circumstances: Tiffany disappeared from Santa Cruz and may have been hitchhiking. She was reportedly without medication she needed for an unspecified medical condition. Her sister originally reported her missing, but the original law-enforcement report was later purged. Tiffany was reported missing again in 2014, approximately 40 years after her disappearance.

Detailed Case Breakdown

The Disappearance of Tiffany Doyle: California Woman Missing Since 1974

More than half a century after 26-year-old Tiffany Doyle disappeared from Santa Cruz, California, her case remains unresolved. Doyle, who may also have used the surname Felky (some records spell it Felkey), was last seen on November 8, 1974. She has never been confirmed alive or located since.

Very Brief Case Summary

Last Seen: November 8, 1974
Location: Santa Cruz, Santa Cruz County, California
Age: 26
Classification: Endangered Missing
Known Alias: Tiffany Felky/Felkey
Investigating Agency: Santa Cruz County Sheriff’s Office
Agency Case Number: 1400135 / 14-00135
NamUs Number: MP26191

Main circumstances: Tiffany disappeared from Santa Cruz and may have been hitchhiking. She was reportedly without medication she needed for an unspecified medical condition. Her sister originally reported her missing, but the original law-enforcement report was later purged. Tiffany was reported missing again in 2014, approximately 40 years after her disappearance.

Who Was Tiffany Doyle?

Tiffany Doyle was born December 29, 1947. She was 26 years old when she disappeared. She was approximately 5 feet 6 inches tall and weighed about 100 pounds. The California Department of Justice currently lists her as a white female and does not specify her hair or eye color, while The Charley Project identifies her hair as brown.

According to The Charley Project, Tiffany was wearing a brown nylon jacket and multicolored stocking cap and carrying a green day pack when she disappeared. She also reportedly had an unspecified medical condition. Although the condition itself was not considered life-threatening, she needed medication and apparently did not have that medication with her.

Tiffany Doyle Disappears in Santa Cruz

Tiffany was last seen in Santa Cruz, California, on Friday, November 8, 1974. Publicly available official information about precisely where in Santa Cruz she was last seen, who last saw her, what time she disappeared or where she intended to go is extremely limited.

The Charley Project states that Tiffany may have gone hitchhiking on the day she disappeared. It also notes the possibility that she left voluntarily. Neither scenario, however, explains what happened afterward: Tiffany was never heard from again.

That distinction is important. Public sources do not establish that Tiffany was abducted or murdered, and no publicly identified suspect has been established in her disappearance. The circumstances therefore remain unresolved.

A Missing-Person Report That Disappeared Too

One of the most significant complications in Tiffany’s case involves the original police record.

According to The Charley Project, Tiffany’s sister originally reported her missing, but the original missing-person report was subsequently purged. Tiffany was then reported missing again in 2014, nearly four decades after she vanished.

That extraordinary gap potentially matters in a decades-old missing-person investigation. Records from the original investigation could have contained witness information, addresses, associates, travel plans or other details that are difficult or impossible to reconstruct many years later.

The available sources do not publicly explain why the original report was purged or provide enough information to determine exactly what investigative material was lost with it.

Could Tiffany Have Been Hitchhiking?

Hitchhiking is one of the few circumstances repeatedly associated with Tiffany’s disappearance. The Charley Project says she may have hitchhiked on the day she vanished, while later discussions of her case have considered unidentified-person cases in California and elsewhere as possible comparisons.

Those comparisons should not be mistaken for established investigative conclusions. Online researchers have proposed potential unidentified-remains matches over the years, but a resemblance, geographic possibility or compatible date does not establish identity.

Without a confirmed identification or an official announcement from investigators, Tiffany remains missing.

The NamUs Record and National Missing-Person Databases

Historical case information reproduced by Websleuths identifies Tiffany’s NamUs record as MP26191 and the Santa Cruz Sheriff’s Department agency case as 14-00135. The California Department of Justice currently displays the case number as 1400135.

NamUs is the federal National Missing and Unidentified Persons System. It provides a centralized database and investigative resources that can assist law enforcement in comparing long-term missing people with unidentified remains.

The presence of Tiffany’s case in these systems is particularly significant because her original report was lost from law-enforcement records and had to be reported again decades later.

Latest Publicly Available Case Information

Tiffany remains listed by the California Department of Justice as a missing person, with the Santa Cruz Sheriff’s Department identified as the reporting agency. The state’s current record continues to give November 8, 1974 as her last-seen date and case number 1400135.

A more recent development occurred in 2025, when the Doe Network added Tiffany to its database as case 5042DFCA. The organization’s current update records identify her as a woman missing from California since 1974.

I found no credible public announcement of an arrest, identified suspect, confirmed recovery of Tiffany’s remains or resolution of her disappearance in the sources reviewed through September 2026. Likewise, the available public material does not establish that investigators have classified Tiffany’s disappearance as a homicide.

Her continued listing by California authorities and her more recent addition to the Doe Network mean that Tiffany’s name and identifying information remain available for comparison and renewed public attention decades after she vanished.

Why Tiffany Doyle’s Disappearance Remains Difficult to Solve

Tiffany’s disappearance combines several challenges common to cases from the 1970s: limited surviving documentation, few publicly known witnesses, uncertain travel circumstances and the passage of more than five decades.

The purging of her original missing-person report created an additional obstacle. Because she was not reported again until 2014, investigators attempting to reconstruct the case were working approximately 40 years after the original disappearance.

Even so, modern missing-person databases make comparisons possible in ways that did not exist in 1974. NamUs, for example, is specifically designed to help investigators compare missing people with unidentified remains and provides forensic and investigative services to agencies and families.

Tiffany Doyle Remains Missing

As of the latest publicly available information reviewed, the fundamental question has not changed since 1974: What happened to Tiffany Doyle after she was last seen in Santa Cruz?

More than 50 years later, there is still no publicly confirmed answer.

Anyone with information concerning Tiffany Doyle’s disappearance should contact the Santa Cruz County Sheriff’s Office at (831) 454-2242 and reference case 1400135 / 14-00135.